40048220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 86184000

約数和(自身を除く): 46135780

約数列:

[1, 2, 4, 5, 10, 20, 89, 149, 151, 178, 298, 302, 356, 445, 596, 604, 745, 755, 890, 1490, 1510, 1780, 2980, 3020, 13261, 13439, 22499, 26522, 26878, 44998, 53044, 53756, 66305, 67195, 89996, 112495, 132610, 134390, 224990, 265220, 268780, 449980, 2002411, 4004822, 8009644, 10012055, 20024110, 40048220]

約数ペア:

[(1, 40048220), (2, 20024110), (4, 10012055), (5, 8009644), (10, 4004822), (20, 2002411), (89, 449980), (149, 268780), (151, 265220), (178, 224990), (298, 134390), (302, 132610), (356, 112495), (445, 89996), (596, 67195), (604, 66305), (745, 53756), (755, 53044), (890, 44998), (1490, 26878), (1510, 26522), (1780, 22499), (2980, 13439), (3020, 13261)]