405113380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{2633}}^1$

素因数の和:2813

約数の個数: 72

約数和(自身を含む): 996315768

約数和(自身を除く): 591202388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 314, 490, 628, 785, 980, 1099, 1570, 2198, 2633, 3140, 4396, 5266, 5495, 7693, 10532, 10990, 13165, 15386, 18431, 21980, 26330, 30772, 36862, 38465, 52660, 73724, 76930, 92155, 129017, 153860, 184310, 258034, 368620, 413381, 516068, 645085, 826762, 1290170, 1653524, 2066905, 2580340, 2893667, 4133810, 5787334, 8267620, 11574668, 14468335, 20255669, 28936670, 40511338, 57873340, 81022676, 101278345, 202556690, 405113380]

約数ペア:

[(1, 405113380), (2, 202556690), (4, 101278345), (5, 81022676), (7, 57873340), (10, 40511338), (14, 28936670), (20, 20255669), (28, 14468335), (35, 11574668), (49, 8267620), (70, 5787334), (98, 4133810), (140, 2893667), (157, 2580340), (196, 2066905), (245, 1653524), (314, 1290170), (490, 826762), (628, 645085), (785, 516068), (980, 413381), (1099, 368620), (1570, 258034), (2198, 184310), (2633, 153860), (3140, 129017), (4396, 92155), (5266, 76930), (5495, 73724), (7693, 52660), (10532, 38465), (10990, 36862), (13165, 30772), (15386, 26330), (18431, 21980)]