20120693650

素因数分解:

$2^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{509}}^1\times {\mathrm{1933}}^1$

素因数の和:2863

約数の個数: 48

約数和(自身を含む): 37609144200

約数和(自身を除く): 17488450550

約数列:

[1, 2, 5, 10, 25, 50, 409, 509, 818, 1018, 1933, 2045, 2545, 3866, 4090, 5090, 9665, 10225, 12725, 19330, 20450, 25450, 48325, 96650, 208181, 416362, 790597, 983897, 1040905, 1581194, 1967794, 2081810, 3952985, 4919485, 5204525, 7905970, 9838970, 10409050, 19764925, 24597425, 39529850, 49194850, 402413873, 804827746, 2012069365, 4024138730, 10060346825, 20120693650]

約数ペア:

[(1, 20120693650), (2, 10060346825), (5, 4024138730), (10, 2012069365), (25, 804827746), (50, 402413873), (409, 49194850), (509, 39529850), (818, 24597425), (1018, 19764925), (1933, 10409050), (2045, 9838970), (2545, 7905970), (3866, 5204525), (4090, 4919485), (5090, 3952985), (9665, 2081810), (10225, 1967794), (12725, 1581194), (19330, 1040905), (20450, 983897), (25450, 790597), (48325, 416362), (96650, 208181)]