20148550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 19848890

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 127, 167, 190, 254, 334, 475, 635, 835, 950, 1270, 1670, 2413, 3173, 3175, 4175, 4826, 6346, 6350, 8350, 12065, 15865, 21209, 24130, 31730, 42418, 60325, 79325, 106045, 120650, 158650, 212090, 402971, 530225, 805942, 1060450, 2014855, 4029710, 10074275, 20148550]

約数ペア:

[(1, 20148550), (2, 10074275), (5, 4029710), (10, 2014855), (19, 1060450), (25, 805942), (38, 530225), (50, 402971), (95, 212090), (127, 158650), (167, 120650), (190, 106045), (254, 79325), (334, 60325), (475, 42418), (635, 31730), (835, 24130), (950, 21209), (1270, 15865), (1670, 12065), (2413, 8350), (3173, 6350), (3175, 6346), (4175, 4826)]