2820640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 7194852

約数和(自身を除く): 4374212

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 68, 80, 85, 122, 136, 160, 170, 244, 272, 289, 305, 340, 488, 544, 578, 610, 680, 976, 1037, 1156, 1220, 1360, 1445, 1952, 2074, 2312, 2440, 2720, 2890, 4148, 4624, 4880, 5185, 5780, 8296, 9248, 9760, 10370, 11560, 16592, 17629, 20740, 23120, 33184, 35258, 41480, 46240, 70516, 82960, 88145, 141032, 165920, 176290, 282064, 352580, 564128, 705160, 1410320, 2820640]

約数ペア:

[(1, 2820640), (2, 1410320), (4, 705160), (5, 564128), (8, 352580), (10, 282064), (16, 176290), (17, 165920), (20, 141032), (32, 88145), (34, 82960), (40, 70516), (61, 46240), (68, 41480), (80, 35258), (85, 33184), (122, 23120), (136, 20740), (160, 17629), (170, 16592), (244, 11560), (272, 10370), (289, 9760), (305, 9248), (340, 8296), (488, 5780), (544, 5185), (578, 4880), (610, 4624), (680, 4148), (976, 2890), (1037, 2720), (1156, 2440), (1220, 2312), (1360, 2074), (1445, 1952)]