31868840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 75062160

約数和(自身を除く): 43193320

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 353, 370, 488, 610, 706, 740, 1220, 1412, 1480, 1765, 2257, 2440, 2824, 3530, 4514, 7060, 9028, 11285, 13061, 14120, 18056, 21533, 22570, 26122, 43066, 45140, 52244, 65305, 86132, 90280, 104488, 107665, 130610, 172264, 215330, 261220, 430660, 522440, 796721, 861320, 1593442, 3186884, 3983605, 6373768, 7967210, 15934420, 31868840]

約数ペア:

[(1, 31868840), (2, 15934420), (4, 7967210), (5, 6373768), (8, 3983605), (10, 3186884), (20, 1593442), (37, 861320), (40, 796721), (61, 522440), (74, 430660), (122, 261220), (148, 215330), (185, 172264), (244, 130610), (296, 107665), (305, 104488), (353, 90280), (370, 86132), (488, 65305), (610, 52244), (706, 45140), (740, 43066), (1220, 26122), (1412, 22570), (1480, 21533), (1765, 18056), (2257, 14120), (2440, 13061), (2824, 11285), (3530, 9028), (4514, 7060)]