238971160

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2647}}^1$

素因数の和:2756

約数の個数: 64

約数和(自身を含む): 561481920

約数和(自身を除く): 322510760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 370, 488, 610, 740, 1220, 1480, 2257, 2440, 2647, 4514, 5294, 9028, 10588, 11285, 13235, 18056, 21176, 22570, 26470, 45140, 52940, 90280, 97939, 105880, 161467, 195878, 322934, 391756, 489695, 645868, 783512, 807335, 979390, 1291736, 1614670, 1958780, 3229340, 3917560, 5974279, 6458680, 11948558, 23897116, 29871395, 47794232, 59742790, 119485580, 238971160]

約数ペア:

[(1, 238971160), (2, 119485580), (4, 59742790), (5, 47794232), (8, 29871395), (10, 23897116), (20, 11948558), (37, 6458680), (40, 5974279), (61, 3917560), (74, 3229340), (122, 1958780), (148, 1614670), (185, 1291736), (244, 979390), (296, 807335), (305, 783512), (370, 645868), (488, 489695), (610, 391756), (740, 322934), (1220, 195878), (1480, 161467), (2257, 105880), (2440, 97939), (2647, 90280), (4514, 52940), (5294, 45140), (9028, 26470), (10588, 22570), (11285, 21176), (13235, 18056)]