31301320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25243}}^1$

素因数の和:25285

約数の個数: 32

約数和(自身を含む): 72702720

約数和(自身を除く): 41401400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25243, 50486, 100972, 126215, 201944, 252430, 504860, 782533, 1009720, 1565066, 3130132, 3912665, 6260264, 7825330, 15650660, 31301320]

約数ペア:

[(1, 31301320), (2, 15650660), (4, 7825330), (5, 6260264), (8, 3912665), (10, 3130132), (20, 1565066), (31, 1009720), (40, 782533), (62, 504860), (124, 252430), (155, 201944), (248, 126215), (310, 100972), (620, 50486), (1240, 25243)]