2001648680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{347}}^1\times {\mathrm{499}}^1$

素因数の和:891

約数の個数: 96

約数和(自身を含む): 4807620000

約数和(自身を除く): 2805971320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 347, 499, 578, 680, 694, 998, 1156, 1388, 1445, 1735, 1996, 2312, 2495, 2776, 2890, 3470, 3992, 4990, 5780, 5899, 6940, 8483, 9980, 11560, 11798, 13880, 16966, 19960, 23596, 29495, 33932, 42415, 47192, 58990, 67864, 84830, 100283, 117980, 144211, 169660, 173153, 200566, 235960, 288422, 339320, 346306, 401132, 501415, 576844, 692612, 721055, 802264, 865765, 1002830, 1153688, 1385224, 1442110, 1731530, 2005660, 2884220, 2943601, 3463060, 4011320, 5768440, 5887202, 6926120, 11774404, 14718005, 23548808, 29436010, 50041217, 58872020, 100082434, 117744040, 200164868, 250206085, 400329736, 500412170, 1000824340, 2001648680]

約数ペア:

[(1, 2001648680), (2, 1000824340), (4, 500412170), (5, 400329736), (8, 250206085), (10, 200164868), (17, 117744040), (20, 100082434), (34, 58872020), (40, 50041217), (68, 29436010), (85, 23548808), (136, 14718005), (170, 11774404), (289, 6926120), (340, 5887202), (347, 5768440), (499, 4011320), (578, 3463060), (680, 2943601), (694, 2884220), (998, 2005660), (1156, 1731530), (1388, 1442110), (1445, 1385224), (1735, 1153688), (1996, 1002830), (2312, 865765), (2495, 802264), (2776, 721055), (2890, 692612), (3470, 576844), (3992, 501415), (4990, 401132), (5780, 346306), (5899, 339320), (6940, 288422), (8483, 235960), (9980, 200566), (11560, 173153), (11798, 169660), (13880, 144211), (16966, 117980), (19960, 100283), (23596, 84830), (29495, 67864), (33932, 58990), (42415, 47192)]