31425320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25343}}^1$

素因数の和:25385

約数の個数: 32

約数和(自身を含む): 72990720

約数和(自身を除く): 41565400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25343, 50686, 101372, 126715, 202744, 253430, 506860, 785633, 1013720, 1571266, 3142532, 3928165, 6285064, 7856330, 15712660, 31425320]

約数ペア:

[(1, 31425320), (2, 15712660), (4, 7856330), (5, 6285064), (8, 3928165), (10, 3142532), (20, 1571266), (31, 1013720), (40, 785633), (62, 506860), (124, 253430), (155, 202744), (248, 126715), (310, 101372), (620, 50686), (1240, 25343)]