31998960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{907}}^1$

素因数の和:940

約数の個数: 180

約数和(自身を含む): 125146008

約数和(自身を除く): 93147048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 907, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1814, 1960, 2205, 2352, 2520, 2721, 2940, 3528, 3628, 3920, 4410, 4535, 5040, 5442, 5880, 6349, 7056, 7256, 8163, 8820, 9070, 10884, 11760, 12698, 13605, 14512, 16326, 17640, 18140, 19047, 21768, 25396, 27210, 31745, 32652, 35280, 36280, 38094, 40815, 43536, 44443, 50792, 54420, 57141, 63490, 65304, 72560, 76188, 81630, 88886, 95235, 101584, 108840, 114282, 126980, 130608, 133329, 152376, 163260, 177772, 190470, 217680, 222215, 228564, 253960, 266658, 285705, 304752, 326520, 355544, 380940, 399987, 444430, 457128, 507920, 533316, 571410, 653040, 666645, 711088, 761880, 799974, 888860, 914256, 1066632, 1142820, 1333290, 1523760, 1599948, 1777720, 1999935, 2133264, 2285640, 2666580, 3199896, 3555440, 3999870, 4571280, 5333160, 6399792, 7999740, 10666320, 15999480, 31998960]

約数ペア:

[(1, 31998960), (2, 15999480), (3, 10666320), (4, 7999740), (5, 6399792), (6, 5333160), (7, 4571280), (8, 3999870), (9, 3555440), (10, 3199896), (12, 2666580), (14, 2285640), (15, 2133264), (16, 1999935), (18, 1777720), (20, 1599948), (21, 1523760), (24, 1333290), (28, 1142820), (30, 1066632), (35, 914256), (36, 888860), (40, 799974), (42, 761880), (45, 711088), (48, 666645), (49, 653040), (56, 571410), (60, 533316), (63, 507920), (70, 457128), (72, 444430), (80, 399987), (84, 380940), (90, 355544), (98, 326520), (105, 304752), (112, 285705), (120, 266658), (126, 253960), (140, 228564), (144, 222215), (147, 217680), (168, 190470), (180, 177772), (196, 163260), (210, 152376), (240, 133329), (245, 130608), (252, 126980), (280, 114282), (294, 108840), (315, 101584), (336, 95235), (360, 88886), (392, 81630), (420, 76188), (441, 72560), (490, 65304), (504, 63490), (560, 57141), (588, 54420), (630, 50792), (720, 44443), (735, 43536), (784, 40815), (840, 38094), (882, 36280), (907, 35280), (980, 32652), (1008, 31745), (1176, 27210), (1260, 25396), (1470, 21768), (1680, 19047), (1764, 18140), (1814, 17640), (1960, 16326), (2205, 14512), (2352, 13605), (2520, 12698), (2721, 11760), (2940, 10884), (3528, 9070), (3628, 8820), (3920, 8163), (4410, 7256), (4535, 7056), (5040, 6349), (5442, 5880)]