201311720

素因数分解:

$2^3\times 5^1\times {\mathrm{953}}^1\times {\mathrm{5281}}^1$

素因数の和:6245

約数の個数: 32

約数和(自身を含む): 453512520

約数和(自身を除く): 252200800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 953, 1906, 3812, 4765, 5281, 7624, 9530, 10562, 19060, 21124, 26405, 38120, 42248, 52810, 105620, 211240, 5032793, 10065586, 20131172, 25163965, 40262344, 50327930, 100655860, 201311720]

約数ペア:

[(1, 201311720), (2, 100655860), (4, 50327930), (5, 40262344), (8, 25163965), (10, 20131172), (20, 10065586), (40, 5032793), (953, 211240), (1906, 105620), (3812, 52810), (4765, 42248), (5281, 38120), (7624, 26405), (9530, 21124), (10562, 19060)]