30215920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 81423360

約数和(自身を除く): 51207440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 683, 790, 1106, 1264, 1366, 1580, 2212, 2732, 2765, 3160, 3415, 4424, 4781, 5464, 5530, 6320, 6830, 8848, 9562, 10928, 11060, 13660, 19124, 22120, 23905, 27320, 38248, 44240, 47810, 53957, 54640, 76496, 95620, 107914, 191240, 215828, 269785, 377699, 382480, 431656, 539570, 755398, 863312, 1079140, 1510796, 1888495, 2158280, 3021592, 3776990, 4316560, 6043184, 7553980, 15107960, 30215920]

約数ペア:

[(1, 30215920), (2, 15107960), (4, 7553980), (5, 6043184), (7, 4316560), (8, 3776990), (10, 3021592), (14, 2158280), (16, 1888495), (20, 1510796), (28, 1079140), (35, 863312), (40, 755398), (56, 539570), (70, 431656), (79, 382480), (80, 377699), (112, 269785), (140, 215828), (158, 191240), (280, 107914), (316, 95620), (395, 76496), (553, 54640), (560, 53957), (632, 47810), (683, 44240), (790, 38248), (1106, 27320), (1264, 23905), (1366, 22120), (1580, 19124), (2212, 13660), (2732, 11060), (2765, 10928), (3160, 9562), (3415, 8848), (4424, 6830), (4781, 6320), (5464, 5530)]