181317760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:119

約数の個数: 256

約数和(自身を含む): 520934400

約数和(自身を除く): 339616640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 37, 38, 40, 52, 62, 64, 65, 74, 76, 80, 95, 104, 124, 128, 130, 148, 152, 155, 160, 185, 190, 208, 247, 248, 260, 296, 304, 310, 320, 370, 380, 403, 416, 481, 494, 496, 520, 589, 592, 608, 620, 640, 703, 740, 760, 806, 832, 962, 988, 992, 1040, 1147, 1178, 1184, 1216, 1235, 1240, 1406, 1480, 1520, 1612, 1664, 1924, 1976, 1984, 2015, 2080, 2294, 2356, 2368, 2405, 2432, 2470, 2480, 2812, 2945, 2960, 3040, 3224, 3515, 3848, 3952, 3968, 4030, 4160, 4588, 4712, 4736, 4810, 4940, 4960, 5624, 5735, 5890, 5920, 6080, 6448, 7030, 7657, 7696, 7904, 8060, 8320, 9139, 9176, 9424, 9620, 9880, 9920, 11248, 11470, 11780, 11840, 12160, 12896, 14060, 14911, 15314, 15392, 15808, 16120, 18278, 18352, 18848, 19240, 19760, 19840, 21793, 22496, 22940, 23560, 23680, 25792, 28120, 29822, 30628, 30784, 31616, 32240, 36556, 36704, 37696, 38285, 38480, 39520, 43586, 44992, 45695, 45880, 47120, 51584, 56240, 59644, 61256, 61568, 64480, 73112, 73408, 74555, 75392, 76570, 76960, 79040, 87172, 89984, 91390, 91760, 94240, 108965, 112480, 119288, 122512, 128960, 146224, 146816, 149110, 153140, 153920, 158080, 174344, 182780, 183520, 188480, 217930, 224960, 238576, 245024, 257920, 283309, 292448, 298220, 306280, 307840, 348688, 365560, 367040, 376960, 435860, 449920, 477152, 490048, 566618, 584896, 596440, 612560, 697376, 731120, 734080, 871720, 954304, 980096, 1133236, 1169792, 1192880, 1225120, 1394752, 1416545, 1462240, 1743440, 1908608, 2266472, 2385760, 2450240, 2789504, 2833090, 2924480, 3486880, 4532944, 4771520, 4900480, 5666180, 5848960, 6973760, 9065888, 9543040, 11332360, 13947520, 18131776, 22664720, 36263552, 45329440, 90658880, 181317760]

約数ペア:

[(1, 181317760), (2, 90658880), (4, 45329440), (5, 36263552), (8, 22664720), (10, 18131776), (13, 13947520), (16, 11332360), (19, 9543040), (20, 9065888), (26, 6973760), (31, 5848960), (32, 5666180), (37, 4900480), (38, 4771520), (40, 4532944), (52, 3486880), (62, 2924480), (64, 2833090), (65, 2789504), (74, 2450240), (76, 2385760), (80, 2266472), (95, 1908608), (104, 1743440), (124, 1462240), (128, 1416545), (130, 1394752), (148, 1225120), (152, 1192880), (155, 1169792), (160, 1133236), (185, 980096), (190, 954304), (208, 871720), (247, 734080), (248, 731120), (260, 697376), (296, 612560), (304, 596440), (310, 584896), (320, 566618), (370, 490048), (380, 477152), (403, 449920), (416, 435860), (481, 376960), (494, 367040), (496, 365560), (520, 348688), (589, 307840), (592, 306280), (608, 298220), (620, 292448), (640, 283309), (703, 257920), (740, 245024), (760, 238576), (806, 224960), (832, 217930), (962, 188480), (988, 183520), (992, 182780), (1040, 174344), (1147, 158080), (1178, 153920), (1184, 153140), (1216, 149110), (1235, 146816), (1240, 146224), (1406, 128960), (1480, 122512), (1520, 119288), (1612, 112480), (1664, 108965), (1924, 94240), (1976, 91760), (1984, 91390), (2015, 89984), (2080, 87172), (2294, 79040), (2356, 76960), (2368, 76570), (2405, 75392), (2432, 74555), (2470, 73408), (2480, 73112), (2812, 64480), (2945, 61568), (2960, 61256), (3040, 59644), (3224, 56240), (3515, 51584), (3848, 47120), (3952, 45880), (3968, 45695), (4030, 44992), (4160, 43586), (4588, 39520), (4712, 38480), (4736, 38285), (4810, 37696), (4940, 36704), (4960, 36556), (5624, 32240), (5735, 31616), (5890, 30784), (5920, 30628), (6080, 29822), (6448, 28120), (7030, 25792), (7657, 23680), (7696, 23560), (7904, 22940), (8060, 22496), (8320, 21793), (9139, 19840), (9176, 19760), (9424, 19240), (9620, 18848), (9880, 18352), (9920, 18278), (11248, 16120), (11470, 15808), (11780, 15392), (11840, 15314), (12160, 14911), (12896, 14060)]