100804520

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2543}}^1$

素因数の和:3545

約数の個数: 32

約数和(自身を含む): 227128320

約数和(自身を除く): 126323800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 2543, 3964, 4955, 5086, 7928, 9910, 10172, 12715, 19820, 20344, 25430, 39640, 50860, 101720, 2520113, 5040226, 10080452, 12600565, 20160904, 25201130, 50402260, 100804520]

約数ペア:

[(1, 100804520), (2, 50402260), (4, 25201130), (5, 20160904), (8, 12600565), (10, 10080452), (20, 5040226), (40, 2520113), (991, 101720), (1982, 50860), (2543, 39640), (3964, 25430), (4955, 20344), (5086, 19820), (7928, 12715), (9910, 10172)]