2007805540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:749

約数の個数: 96

約数和(自身を含む): 4628736000

約数和(自身を除く): 2620930460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 239, 260, 316, 395, 409, 478, 790, 818, 956, 1027, 1195, 1580, 1636, 2045, 2054, 2390, 3107, 4090, 4108, 4780, 5135, 5317, 6214, 8180, 10270, 10634, 12428, 15535, 18881, 20540, 21268, 26585, 31070, 32311, 37762, 53170, 62140, 64622, 75524, 94405, 97751, 106340, 129244, 161555, 188810, 195502, 245453, 323110, 377620, 391004, 420043, 488755, 490906, 646220, 840086, 977510, 981812, 1227265, 1270763, 1680172, 1955020, 2100215, 2454530, 2541526, 4200430, 4909060, 5083052, 6353815, 7722329, 8400860, 12707630, 15444658, 25415260, 30889316, 38611645, 77223290, 100390277, 154446580, 200780554, 401561108, 501951385, 1003902770, 2007805540]

約数ペア:

[(1, 2007805540), (2, 1003902770), (4, 501951385), (5, 401561108), (10, 200780554), (13, 154446580), (20, 100390277), (26, 77223290), (52, 38611645), (65, 30889316), (79, 25415260), (130, 15444658), (158, 12707630), (239, 8400860), (260, 7722329), (316, 6353815), (395, 5083052), (409, 4909060), (478, 4200430), (790, 2541526), (818, 2454530), (956, 2100215), (1027, 1955020), (1195, 1680172), (1580, 1270763), (1636, 1227265), (2045, 981812), (2054, 977510), (2390, 840086), (3107, 646220), (4090, 490906), (4108, 488755), (4780, 420043), (5135, 391004), (5317, 377620), (6214, 323110), (8180, 245453), (10270, 195502), (10634, 188810), (12428, 161555), (15535, 129244), (18881, 106340), (20540, 97751), (21268, 94405), (26585, 75524), (31070, 64622), (32311, 62140), (37762, 53170)]