40685840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 160

約数和(自身を含む): 112492800

約数和(自身を除く): 71806960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 29, 38, 40, 52, 58, 65, 71, 76, 80, 95, 104, 116, 130, 142, 145, 152, 190, 208, 232, 247, 260, 284, 290, 304, 355, 377, 380, 464, 494, 520, 551, 568, 580, 710, 754, 760, 923, 988, 1040, 1102, 1136, 1160, 1235, 1349, 1420, 1508, 1520, 1846, 1885, 1976, 2059, 2204, 2320, 2470, 2698, 2755, 2840, 3016, 3692, 3770, 3952, 4118, 4408, 4615, 4940, 5396, 5510, 5680, 6032, 6745, 7163, 7384, 7540, 8236, 8816, 9230, 9880, 10295, 10792, 11020, 13490, 14326, 14768, 15080, 16472, 17537, 18460, 19760, 20590, 21584, 22040, 26767, 26980, 28652, 30160, 32944, 35074, 35815, 36920, 39121, 41180, 44080, 53534, 53960, 57304, 70148, 71630, 73840, 78242, 82360, 87685, 107068, 107920, 114608, 133835, 140296, 143260, 156484, 164720, 175370, 195605, 214136, 267670, 280592, 286520, 312968, 350740, 391210, 428272, 508573, 535340, 573040, 625936, 701480, 782420, 1017146, 1070680, 1402960, 1564840, 2034292, 2141360, 2542865, 3129680, 4068584, 5085730, 8137168, 10171460, 20342920, 40685840]

約数ペア:

[(1, 40685840), (2, 20342920), (4, 10171460), (5, 8137168), (8, 5085730), (10, 4068584), (13, 3129680), (16, 2542865), (19, 2141360), (20, 2034292), (26, 1564840), (29, 1402960), (38, 1070680), (40, 1017146), (52, 782420), (58, 701480), (65, 625936), (71, 573040), (76, 535340), (80, 508573), (95, 428272), (104, 391210), (116, 350740), (130, 312968), (142, 286520), (145, 280592), (152, 267670), (190, 214136), (208, 195605), (232, 175370), (247, 164720), (260, 156484), (284, 143260), (290, 140296), (304, 133835), (355, 114608), (377, 107920), (380, 107068), (464, 87685), (494, 82360), (520, 78242), (551, 73840), (568, 71630), (580, 70148), (710, 57304), (754, 53960), (760, 53534), (923, 44080), (988, 41180), (1040, 39121), (1102, 36920), (1136, 35815), (1160, 35074), (1235, 32944), (1349, 30160), (1420, 28652), (1508, 26980), (1520, 26767), (1846, 22040), (1885, 21584), (1976, 20590), (2059, 19760), (2204, 18460), (2320, 17537), (2470, 16472), (2698, 15080), (2755, 14768), (2840, 14326), (3016, 13490), (3692, 11020), (3770, 10792), (3952, 10295), (4118, 9880), (4408, 9230), (4615, 8816), (4940, 8236), (5396, 7540), (5510, 7384), (5680, 7163), (6032, 6745)]