20121615040

素因数分解:

$2^6\times 5^1\times {\mathrm{307}}^1\times {\mathrm{204821}}^1$

素因数の和:205145

約数の個数: 56

約数和(自身を含む): 48070904112

約数和(自身を除く): 27949289072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 307, 320, 614, 1228, 1535, 2456, 3070, 4912, 6140, 9824, 12280, 19648, 24560, 49120, 98240, 204821, 409642, 819284, 1024105, 1638568, 2048210, 3277136, 4096420, 6554272, 8192840, 13108544, 16385680, 32771360, 62880047, 65542720, 125760094, 251520188, 314400235, 503040376, 628800470, 1006080752, 1257600940, 2012161504, 2515201880, 4024323008, 5030403760, 10060807520, 20121615040]

約数ペア:

[(1, 20121615040), (2, 10060807520), (4, 5030403760), (5, 4024323008), (8, 2515201880), (10, 2012161504), (16, 1257600940), (20, 1006080752), (32, 628800470), (40, 503040376), (64, 314400235), (80, 251520188), (160, 125760094), (307, 65542720), (320, 62880047), (614, 32771360), (1228, 16385680), (1535, 13108544), (2456, 8192840), (3070, 6554272), (4912, 4096420), (6140, 3277136), (9824, 2048210), (12280, 1638568), (19648, 1024105), (24560, 819284), (49120, 409642), (98240, 204821)]