90641520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 180

約数和(自身を含む): 316941768

約数和(自身を除く): 226300248

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 131, 144, 155, 180, 186, 240, 248, 262, 279, 310, 360, 372, 393, 465, 496, 524, 558, 620, 655, 720, 744, 786, 930, 961, 1048, 1116, 1179, 1240, 1310, 1395, 1488, 1572, 1860, 1922, 1965, 2096, 2232, 2358, 2480, 2620, 2790, 2883, 3144, 3720, 3844, 3930, 4061, 4464, 4716, 4805, 5240, 5580, 5766, 5895, 6288, 7440, 7688, 7860, 8122, 8649, 9432, 9610, 10480, 11160, 11532, 11790, 12183, 14415, 15376, 15720, 16244, 17298, 18864, 19220, 20305, 22320, 23064, 23580, 24366, 28830, 31440, 32488, 34596, 36549, 38440, 40610, 43245, 46128, 47160, 48732, 57660, 60915, 64976, 69192, 73098, 76880, 81220, 86490, 94320, 97464, 115320, 121830, 125891, 138384, 146196, 162440, 172980, 182745, 194928, 230640, 243660, 251782, 292392, 324880, 345960, 365490, 377673, 487320, 503564, 584784, 629455, 691920, 730980, 755346, 974640, 1007128, 1133019, 1258910, 1461960, 1510692, 1888365, 2014256, 2266038, 2517820, 2923920, 3021384, 3776730, 4532076, 5035640, 5665095, 6042768, 7553460, 9064152, 10071280, 11330190, 15106920, 18128304, 22660380, 30213840, 45320760, 90641520]

約数ペア:

[(1, 90641520), (2, 45320760), (3, 30213840), (4, 22660380), (5, 18128304), (6, 15106920), (8, 11330190), (9, 10071280), (10, 9064152), (12, 7553460), (15, 6042768), (16, 5665095), (18, 5035640), (20, 4532076), (24, 3776730), (30, 3021384), (31, 2923920), (36, 2517820), (40, 2266038), (45, 2014256), (48, 1888365), (60, 1510692), (62, 1461960), (72, 1258910), (80, 1133019), (90, 1007128), (93, 974640), (120, 755346), (124, 730980), (131, 691920), (144, 629455), (155, 584784), (180, 503564), (186, 487320), (240, 377673), (248, 365490), (262, 345960), (279, 324880), (310, 292392), (360, 251782), (372, 243660), (393, 230640), (465, 194928), (496, 182745), (524, 172980), (558, 162440), (620, 146196), (655, 138384), (720, 125891), (744, 121830), (786, 115320), (930, 97464), (961, 94320), (1048, 86490), (1116, 81220), (1179, 76880), (1240, 73098), (1310, 69192), (1395, 64976), (1488, 60915), (1572, 57660), (1860, 48732), (1922, 47160), (1965, 46128), (2096, 43245), (2232, 40610), (2358, 38440), (2480, 36549), (2620, 34596), (2790, 32488), (2883, 31440), (3144, 28830), (3720, 24366), (3844, 23580), (3930, 23064), (4061, 22320), (4464, 20305), (4716, 19220), (4805, 18864), (5240, 17298), (5580, 16244), (5766, 15720), (5895, 15376), (6288, 14415), (7440, 12183), (7688, 11790), (7860, 11532), (8122, 11160), (8649, 10480), (9432, 9610)]