20805030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7457}}^1$

素因数の和:7501

約数の個数: 48

約数和(自身を含む): 55845504

約数和(自身を除く): 35040474

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7457, 14914, 22371, 37285, 44742, 67113, 74570, 111855, 134226, 223710, 231167, 335565, 462334, 671130, 693501, 1155835, 1387002, 2080503, 2311670, 3467505, 4161006, 6935010, 10402515, 20805030]

約数ペア:

[(1, 20805030), (2, 10402515), (3, 6935010), (5, 4161006), (6, 3467505), (9, 2311670), (10, 2080503), (15, 1387002), (18, 1155835), (30, 693501), (31, 671130), (45, 462334), (62, 335565), (90, 231167), (93, 223710), (155, 134226), (186, 111855), (279, 74570), (310, 67113), (465, 44742), (558, 37285), (930, 22371), (1395, 14914), (2790, 7457)]