20587410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 56788992

約数和(自身を除く): 36201582

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 47, 62, 90, 93, 94, 141, 155, 157, 186, 235, 279, 282, 310, 314, 423, 465, 470, 471, 558, 705, 785, 846, 930, 942, 1395, 1410, 1413, 1457, 1570, 2115, 2355, 2790, 2826, 2914, 4230, 4371, 4710, 4867, 7065, 7285, 7379, 8742, 9734, 13113, 14130, 14570, 14601, 14758, 21855, 22137, 24335, 26226, 29202, 36895, 43710, 43803, 44274, 48670, 65565, 66411, 73005, 73790, 87606, 110685, 131130, 132822, 146010, 219015, 221370, 228749, 332055, 438030, 457498, 664110, 686247, 1143745, 1372494, 2058741, 2287490, 3431235, 4117482, 6862470, 10293705, 20587410]

約数ペア:

[(1, 20587410), (2, 10293705), (3, 6862470), (5, 4117482), (6, 3431235), (9, 2287490), (10, 2058741), (15, 1372494), (18, 1143745), (30, 686247), (31, 664110), (45, 457498), (47, 438030), (62, 332055), (90, 228749), (93, 221370), (94, 219015), (141, 146010), (155, 132822), (157, 131130), (186, 110685), (235, 87606), (279, 73790), (282, 73005), (310, 66411), (314, 65565), (423, 48670), (465, 44274), (470, 43803), (471, 43710), (558, 36895), (705, 29202), (785, 26226), (846, 24335), (930, 22137), (942, 21855), (1395, 14758), (1410, 14601), (1413, 14570), (1457, 14130), (1570, 13113), (2115, 9734), (2355, 8742), (2790, 7379), (2826, 7285), (2914, 7065), (4230, 4867), (4371, 4710)]