40020650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 79310400

約数和(自身を除く): 39289750

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 103, 190, 206, 409, 475, 515, 818, 950, 1030, 1957, 2045, 2575, 3914, 4090, 5150, 7771, 9785, 10225, 15542, 19570, 20450, 38855, 42127, 48925, 77710, 84254, 97850, 194275, 210635, 388550, 421270, 800413, 1053175, 1600826, 2106350, 4002065, 8004130, 20010325, 40020650]

約数ペア:

[(1, 40020650), (2, 20010325), (5, 8004130), (10, 4002065), (19, 2106350), (25, 1600826), (38, 1053175), (50, 800413), (95, 421270), (103, 388550), (190, 210635), (206, 194275), (409, 97850), (475, 84254), (515, 77710), (818, 48925), (950, 42127), (1030, 38855), (1957, 20450), (2045, 19570), (2575, 15542), (3914, 10225), (4090, 9785), (5150, 7771)]