21688400

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{919}}^1$

素因数の和:996

約数の個数: 60

約数和(自身を含む): 53047200

約数和(自身を除く): 31358800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 200, 236, 295, 400, 472, 590, 919, 944, 1180, 1475, 1838, 2360, 2950, 3676, 4595, 4720, 5900, 7352, 9190, 11800, 14704, 18380, 22975, 23600, 36760, 45950, 54221, 73520, 91900, 108442, 183800, 216884, 271105, 367600, 433768, 542210, 867536, 1084420, 1355525, 2168840, 2711050, 4337680, 5422100, 10844200, 21688400]

約数ペア:

[(1, 21688400), (2, 10844200), (4, 5422100), (5, 4337680), (8, 2711050), (10, 2168840), (16, 1355525), (20, 1084420), (25, 867536), (40, 542210), (50, 433768), (59, 367600), (80, 271105), (100, 216884), (118, 183800), (200, 108442), (236, 91900), (295, 73520), (400, 54221), (472, 45950), (590, 36760), (919, 23600), (944, 22975), (1180, 18380), (1475, 14704), (1838, 11800), (2360, 9190), (2950, 7352), (3676, 5900), (4595, 4720)]