80401360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{797}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 203643216

約数和(自身を除く): 123241856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 797, 970, 1040, 1261, 1552, 1594, 1940, 2522, 3188, 3880, 3985, 5044, 6305, 6376, 7760, 7970, 10088, 10361, 12610, 12752, 15940, 20176, 20722, 25220, 31880, 41444, 50440, 51805, 63760, 77309, 82888, 100880, 103610, 154618, 165776, 207220, 309236, 386545, 414440, 618472, 773090, 828880, 1005017, 1236944, 1546180, 2010034, 3092360, 4020068, 5025085, 6184720, 8040136, 10050170, 16080272, 20100340, 40200680, 80401360]

約数ペア:

[(1, 80401360), (2, 40200680), (4, 20100340), (5, 16080272), (8, 10050170), (10, 8040136), (13, 6184720), (16, 5025085), (20, 4020068), (26, 3092360), (40, 2010034), (52, 1546180), (65, 1236944), (80, 1005017), (97, 828880), (104, 773090), (130, 618472), (194, 414440), (208, 386545), (260, 309236), (388, 207220), (485, 165776), (520, 154618), (776, 103610), (797, 100880), (970, 82888), (1040, 77309), (1261, 63760), (1552, 51805), (1594, 50440), (1940, 41444), (2522, 31880), (3188, 25220), (3880, 20722), (3985, 20176), (5044, 15940), (6305, 12752), (6376, 12610), (7760, 10361), (7970, 10088)]