131478440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106031}}^1$

素因数の和:106073

約数の個数: 32

約数和(自身を含む): 305372160

約数和(自身を除く): 173893720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106031, 212062, 424124, 530155, 848248, 1060310, 2120620, 3286961, 4241240, 6573922, 13147844, 16434805, 26295688, 32869610, 65739220, 131478440]

約数ペア:

[(1, 131478440), (2, 65739220), (4, 32869610), (5, 26295688), (8, 16434805), (10, 13147844), (20, 6573922), (31, 4241240), (40, 3286961), (62, 2120620), (124, 1060310), (155, 848248), (248, 530155), (310, 424124), (620, 212062), (1240, 106031)]