198734680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 497664000

約数和(自身を除く): 298929320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 71, 76, 95, 116, 127, 142, 145, 152, 190, 232, 254, 284, 290, 355, 380, 508, 551, 568, 580, 635, 710, 760, 1016, 1102, 1160, 1270, 1349, 1420, 2059, 2204, 2413, 2540, 2698, 2755, 2840, 3683, 4118, 4408, 4826, 5080, 5396, 5510, 6745, 7366, 8236, 9017, 9652, 10295, 10792, 11020, 12065, 13490, 14732, 16472, 18034, 18415, 19304, 20590, 22040, 24130, 26980, 29464, 36068, 36830, 39121, 41180, 45085, 48260, 53960, 69977, 72136, 73660, 78242, 82360, 90170, 96520, 139954, 147320, 156484, 171323, 180340, 195605, 261493, 279908, 312968, 342646, 349885, 360680, 391210, 522986, 559816, 685292, 699770, 782420, 856615, 1045972, 1307465, 1370584, 1399540, 1564840, 1713230, 2091944, 2614930, 2799080, 3426460, 4968367, 5229860, 6852920, 9936734, 10459720, 19873468, 24841835, 39746936, 49683670, 99367340, 198734680]

約数ペア:

[(1, 198734680), (2, 99367340), (4, 49683670), (5, 39746936), (8, 24841835), (10, 19873468), (19, 10459720), (20, 9936734), (29, 6852920), (38, 5229860), (40, 4968367), (58, 3426460), (71, 2799080), (76, 2614930), (95, 2091944), (116, 1713230), (127, 1564840), (142, 1399540), (145, 1370584), (152, 1307465), (190, 1045972), (232, 856615), (254, 782420), (284, 699770), (290, 685292), (355, 559816), (380, 522986), (508, 391210), (551, 360680), (568, 349885), (580, 342646), (635, 312968), (710, 279908), (760, 261493), (1016, 195605), (1102, 180340), (1160, 171323), (1270, 156484), (1349, 147320), (1420, 139954), (2059, 96520), (2204, 90170), (2413, 82360), (2540, 78242), (2698, 73660), (2755, 72136), (2840, 69977), (3683, 53960), (4118, 48260), (4408, 45085), (4826, 41180), (5080, 39121), (5396, 36830), (5510, 36068), (6745, 29464), (7366, 26980), (8236, 24130), (9017, 22040), (9652, 20590), (10295, 19304), (10792, 18415), (11020, 18034), (12065, 16472), (13490, 14732)]