8421460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 19805184

約数和(自身を除く): 11383724

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 47, 62, 68, 85, 94, 124, 155, 170, 188, 235, 289, 310, 340, 470, 527, 578, 620, 799, 940, 1054, 1156, 1445, 1457, 1598, 2108, 2635, 2890, 2914, 3196, 3995, 5270, 5780, 5828, 7285, 7990, 8959, 10540, 13583, 14570, 15980, 17918, 24769, 27166, 29140, 35836, 44795, 49538, 54332, 67915, 89590, 99076, 123845, 135830, 179180, 247690, 271660, 421073, 495380, 842146, 1684292, 2105365, 4210730, 8421460]

約数ペア:

[(1, 8421460), (2, 4210730), (4, 2105365), (5, 1684292), (10, 842146), (17, 495380), (20, 421073), (31, 271660), (34, 247690), (47, 179180), (62, 135830), (68, 123845), (85, 99076), (94, 89590), (124, 67915), (155, 54332), (170, 49538), (188, 44795), (235, 35836), (289, 29140), (310, 27166), (340, 24769), (470, 17918), (527, 15980), (578, 14570), (620, 13583), (799, 10540), (940, 8959), (1054, 7990), (1156, 7285), (1445, 5828), (1457, 5780), (1598, 5270), (2108, 3995), (2635, 3196), (2890, 2914)]