28044640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 72606240

約数和(自身を除く): 44561600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 97, 104, 130, 139, 160, 194, 208, 260, 278, 388, 416, 485, 520, 556, 695, 776, 970, 1040, 1112, 1261, 1390, 1552, 1807, 1940, 2080, 2224, 2522, 2780, 3104, 3614, 3880, 4448, 5044, 5560, 6305, 7228, 7760, 9035, 10088, 11120, 12610, 13483, 14456, 15520, 18070, 20176, 22240, 25220, 26966, 28912, 36140, 40352, 50440, 53932, 57824, 67415, 72280, 100880, 107864, 134830, 144560, 175279, 201760, 215728, 269660, 289120, 350558, 431456, 539320, 701116, 876395, 1078640, 1402232, 1752790, 2157280, 2804464, 3505580, 5608928, 7011160, 14022320, 28044640]

約数ペア:

[(1, 28044640), (2, 14022320), (4, 7011160), (5, 5608928), (8, 3505580), (10, 2804464), (13, 2157280), (16, 1752790), (20, 1402232), (26, 1078640), (32, 876395), (40, 701116), (52, 539320), (65, 431456), (80, 350558), (97, 289120), (104, 269660), (130, 215728), (139, 201760), (160, 175279), (194, 144560), (208, 134830), (260, 107864), (278, 100880), (388, 72280), (416, 67415), (485, 57824), (520, 53932), (556, 50440), (695, 40352), (776, 36140), (970, 28912), (1040, 26966), (1112, 25220), (1261, 22240), (1390, 20176), (1552, 18070), (1807, 15520), (1940, 14456), (2080, 13483), (2224, 12610), (2522, 11120), (2780, 10088), (3104, 9035), (3614, 7760), (3880, 7228), (4448, 6305), (5044, 5560)]