31756790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 69569280

約数和(自身を除く): 37812490

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 43, 46, 65, 86, 95, 115, 130, 169, 190, 215, 230, 247, 299, 338, 430, 437, 494, 559, 598, 817, 845, 874, 989, 1118, 1235, 1495, 1634, 1690, 1978, 2185, 2470, 2795, 2990, 3211, 3887, 4085, 4370, 4945, 5590, 5681, 6422, 7267, 7774, 8170, 9890, 10621, 11362, 12857, 14534, 16055, 18791, 19435, 21242, 25714, 28405, 32110, 36335, 37582, 38870, 53105, 56810, 64285, 72670, 73853, 93955, 106210, 128570, 138073, 147706, 167141, 187910, 244283, 276146, 334282, 369265, 488566, 690365, 738530, 835705, 1221415, 1380730, 1671410, 2442830, 3175679, 6351358, 15878395, 31756790]

約数ペア:

[(1, 31756790), (2, 15878395), (5, 6351358), (10, 3175679), (13, 2442830), (19, 1671410), (23, 1380730), (26, 1221415), (38, 835705), (43, 738530), (46, 690365), (65, 488566), (86, 369265), (95, 334282), (115, 276146), (130, 244283), (169, 187910), (190, 167141), (215, 147706), (230, 138073), (247, 128570), (299, 106210), (338, 93955), (430, 73853), (437, 72670), (494, 64285), (559, 56810), (598, 53105), (817, 38870), (845, 37582), (874, 36335), (989, 32110), (1118, 28405), (1235, 25714), (1495, 21242), (1634, 19435), (1690, 18791), (1978, 16055), (2185, 14534), (2470, 12857), (2795, 11362), (2990, 10621), (3211, 9890), (3887, 8170), (4085, 7774), (4370, 7267), (4945, 6422), (5590, 5681)]