51988020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17683}}^1$

素因数の和:17709

約数の個数: 72

約数和(自身を含む): 169341984

約数和(自身を除く): 117353964

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17683, 35366, 53049, 70732, 88415, 106098, 123781, 176830, 212196, 247562, 265245, 353660, 371343, 495124, 530490, 618905, 742686, 866467, 1060980, 1237810, 1485372, 1732934, 1856715, 2475620, 2599401, 3465868, 3713430, 4332335, 5198802, 7426860, 8664670, 10397604, 12997005, 17329340, 25994010, 51988020]

約数ペア:

[(1, 51988020), (2, 25994010), (3, 17329340), (4, 12997005), (5, 10397604), (6, 8664670), (7, 7426860), (10, 5198802), (12, 4332335), (14, 3713430), (15, 3465868), (20, 2599401), (21, 2475620), (28, 1856715), (30, 1732934), (35, 1485372), (42, 1237810), (49, 1060980), (60, 866467), (70, 742686), (84, 618905), (98, 530490), (105, 495124), (140, 371343), (147, 353660), (196, 265245), (210, 247562), (245, 212196), (294, 176830), (420, 123781), (490, 106098), (588, 88415), (735, 70732), (980, 53049), (1470, 35366), (2940, 17683)]