31775880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 103161600

約数和(自身を除く): 71385720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 276, 290, 345, 348, 397, 435, 460, 552, 580, 667, 690, 696, 794, 870, 920, 1160, 1191, 1334, 1380, 1588, 1740, 1985, 2001, 2382, 2668, 2760, 3176, 3335, 3480, 3970, 4002, 4764, 5336, 5955, 6670, 7940, 8004, 9131, 9528, 10005, 11513, 11910, 13340, 15880, 16008, 18262, 20010, 23026, 23820, 26680, 27393, 34539, 36524, 40020, 45655, 46052, 47640, 54786, 57565, 69078, 73048, 80040, 91310, 92104, 109572, 115130, 136965, 138156, 172695, 182620, 219144, 230260, 264799, 273930, 276312, 345390, 365240, 460520, 529598, 547860, 690780, 794397, 1059196, 1095720, 1323995, 1381560, 1588794, 2118392, 2647990, 3177588, 3971985, 5295980, 6355176, 7943970, 10591960, 15887940, 31775880]

約数ペア:

[(1, 31775880), (2, 15887940), (3, 10591960), (4, 7943970), (5, 6355176), (6, 5295980), (8, 3971985), (10, 3177588), (12, 2647990), (15, 2118392), (20, 1588794), (23, 1381560), (24, 1323995), (29, 1095720), (30, 1059196), (40, 794397), (46, 690780), (58, 547860), (60, 529598), (69, 460520), (87, 365240), (92, 345390), (115, 276312), (116, 273930), (120, 264799), (138, 230260), (145, 219144), (174, 182620), (184, 172695), (230, 138156), (232, 136965), (276, 115130), (290, 109572), (345, 92104), (348, 91310), (397, 80040), (435, 73048), (460, 69078), (552, 57565), (580, 54786), (667, 47640), (690, 46052), (696, 45655), (794, 40020), (870, 36524), (920, 34539), (1160, 27393), (1191, 26680), (1334, 23820), (1380, 23026), (1588, 20010), (1740, 18262), (1985, 16008), (2001, 15880), (2382, 13340), (2668, 11910), (2760, 11513), (3176, 10005), (3335, 9528), (3480, 9131), (3970, 8004), (4002, 7940), (4764, 6670), (5336, 5955)]