20185418260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1\times {\mathrm{2557}}^1$

素因数の和:3185

約数の個数: 96

約数和(自身を含む): 48990816000

約数和(自身を除く): 28805397740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 499, 565, 791, 998, 1130, 1582, 1996, 2260, 2495, 2557, 3164, 3493, 3955, 4990, 5114, 6986, 7910, 9980, 10228, 12785, 13972, 15820, 17465, 17899, 25570, 34930, 35798, 51140, 56387, 69860, 71596, 89495, 112774, 178990, 225548, 281935, 288941, 357980, 394709, 563870, 577882, 789418, 1127740, 1155764, 1275943, 1444705, 1578836, 1973545, 2022587, 2551886, 2889410, 3947090, 4045174, 5103772, 5778820, 6379715, 7894180, 8090348, 8931601, 10112935, 12759430, 17863202, 20225870, 25518860, 35726404, 40451740, 44658005, 89316010, 144181559, 178632020, 288363118, 576726236, 720907795, 1009270913, 1441815590, 2018541826, 2883631180, 4037083652, 5046354565, 10092709130, 20185418260]

約数ペア:

[(1, 20185418260), (2, 10092709130), (4, 5046354565), (5, 4037083652), (7, 2883631180), (10, 2018541826), (14, 1441815590), (20, 1009270913), (28, 720907795), (35, 576726236), (70, 288363118), (113, 178632020), (140, 144181559), (226, 89316010), (452, 44658005), (499, 40451740), (565, 35726404), (791, 25518860), (998, 20225870), (1130, 17863202), (1582, 12759430), (1996, 10112935), (2260, 8931601), (2495, 8090348), (2557, 7894180), (3164, 6379715), (3493, 5778820), (3955, 5103772), (4990, 4045174), (5114, 3947090), (6986, 2889410), (7910, 2551886), (9980, 2022587), (10228, 1973545), (12785, 1578836), (13972, 1444705), (15820, 1275943), (17465, 1155764), (17899, 1127740), (25570, 789418), (34930, 577882), (35798, 563870), (51140, 394709), (56387, 357980), (69860, 288941), (71596, 281935), (89495, 225548), (112774, 178990)]