31947760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 85775760

約数和(自身を除く): 53828000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 139, 169, 170, 208, 221, 260, 272, 278, 338, 340, 442, 520, 556, 676, 680, 695, 845, 884, 1040, 1105, 1112, 1352, 1360, 1390, 1690, 1768, 1807, 2210, 2224, 2363, 2704, 2780, 2873, 3380, 3536, 3614, 4420, 4726, 5560, 5746, 6760, 7228, 8840, 9035, 9452, 11120, 11492, 11815, 13520, 14365, 14456, 17680, 18070, 18904, 22984, 23491, 23630, 28730, 28912, 30719, 36140, 37808, 45968, 46982, 47260, 57460, 61438, 72280, 93964, 94520, 114920, 117455, 122876, 144560, 153595, 187928, 189040, 229840, 234910, 245752, 307190, 375856, 399347, 469820, 491504, 614380, 798694, 939640, 1228760, 1597388, 1879280, 1996735, 2457520, 3194776, 3993470, 6389552, 7986940, 15973880, 31947760]

約数ペア:

[(1, 31947760), (2, 15973880), (4, 7986940), (5, 6389552), (8, 3993470), (10, 3194776), (13, 2457520), (16, 1996735), (17, 1879280), (20, 1597388), (26, 1228760), (34, 939640), (40, 798694), (52, 614380), (65, 491504), (68, 469820), (80, 399347), (85, 375856), (104, 307190), (130, 245752), (136, 234910), (139, 229840), (169, 189040), (170, 187928), (208, 153595), (221, 144560), (260, 122876), (272, 117455), (278, 114920), (338, 94520), (340, 93964), (442, 72280), (520, 61438), (556, 57460), (676, 47260), (680, 46982), (695, 45968), (845, 37808), (884, 36140), (1040, 30719), (1105, 28912), (1112, 28730), (1352, 23630), (1360, 23491), (1390, 22984), (1690, 18904), (1768, 18070), (1807, 17680), (2210, 14456), (2224, 14365), (2363, 13520), (2704, 11815), (2780, 11492), (2873, 11120), (3380, 9452), (3536, 9035), (3614, 8840), (4420, 7228), (4726, 6760), (5560, 5746)]