64396720

素因数分解:

$2^4\times 5^1\times {\mathrm{829}}^1\times {\mathrm{971}}^1$

素因数の和:1813

約数の個数: 40

約数和(自身を含む): 150057360

約数和(自身を除く): 85660640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 971, 1658, 1942, 3316, 3884, 4145, 4855, 6632, 7768, 8290, 9710, 13264, 15536, 16580, 19420, 33160, 38840, 66320, 77680, 804959, 1609918, 3219836, 4024795, 6439672, 8049590, 12879344, 16099180, 32198360, 64396720]

約数ペア:

[(1, 64396720), (2, 32198360), (4, 16099180), (5, 12879344), (8, 8049590), (10, 6439672), (16, 4024795), (20, 3219836), (40, 1609918), (80, 804959), (829, 77680), (971, 66320), (1658, 38840), (1942, 33160), (3316, 19420), (3884, 16580), (4145, 15536), (4855, 13264), (6632, 9710), (7768, 8290)]