81271320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 267321600

約数和(自身を除く): 186050280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 59, 60, 65, 78, 104, 118, 120, 130, 156, 177, 195, 236, 260, 295, 312, 354, 390, 472, 520, 590, 708, 767, 780, 883, 885, 1180, 1416, 1534, 1560, 1766, 1770, 2301, 2360, 2649, 3068, 3532, 3540, 3835, 4415, 4602, 5298, 6136, 7064, 7080, 7670, 8830, 9204, 10596, 11479, 11505, 13245, 15340, 17660, 18408, 21192, 22958, 23010, 26490, 30680, 34437, 35320, 45916, 46020, 52097, 52980, 57395, 68874, 91832, 92040, 104194, 105960, 114790, 137748, 156291, 172185, 208388, 229580, 260485, 275496, 312582, 344370, 416776, 459160, 520970, 625164, 677261, 688740, 781455, 1041940, 1250328, 1354522, 1377480, 1562910, 2031783, 2083880, 2709044, 3125820, 3386305, 4063566, 5418088, 6251640, 6772610, 8127132, 10158915, 13545220, 16254264, 20317830, 27090440, 40635660, 81271320]

約数ペア:

[(1, 81271320), (2, 40635660), (3, 27090440), (4, 20317830), (5, 16254264), (6, 13545220), (8, 10158915), (10, 8127132), (12, 6772610), (13, 6251640), (15, 5418088), (20, 4063566), (24, 3386305), (26, 3125820), (30, 2709044), (39, 2083880), (40, 2031783), (52, 1562910), (59, 1377480), (60, 1354522), (65, 1250328), (78, 1041940), (104, 781455), (118, 688740), (120, 677261), (130, 625164), (156, 520970), (177, 459160), (195, 416776), (236, 344370), (260, 312582), (295, 275496), (312, 260485), (354, 229580), (390, 208388), (472, 172185), (520, 156291), (590, 137748), (708, 114790), (767, 105960), (780, 104194), (883, 92040), (885, 91832), (1180, 68874), (1416, 57395), (1534, 52980), (1560, 52097), (1766, 46020), (1770, 45916), (2301, 35320), (2360, 34437), (2649, 30680), (3068, 26490), (3532, 23010), (3540, 22958), (3835, 21192), (4415, 18408), (4602, 17660), (5298, 15340), (6136, 13245), (7064, 11505), (7080, 11479), (7670, 10596), (8830, 9204)]