28928760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{34439}}^1$

素因数の和:34460

約数の個数: 64

約数和(自身を含む): 99187200

約数和(自身を除く): 70258440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 34439, 68878, 103317, 137756, 172195, 206634, 241073, 275512, 344390, 413268, 482146, 516585, 688780, 723219, 826536, 964292, 1033170, 1205365, 1377560, 1446438, 1928584, 2066340, 2410730, 2892876, 3616095, 4132680, 4821460, 5785752, 7232190, 9642920, 14464380, 28928760]

約数ペア:

[(1, 28928760), (2, 14464380), (3, 9642920), (4, 7232190), (5, 5785752), (6, 4821460), (7, 4132680), (8, 3616095), (10, 2892876), (12, 2410730), (14, 2066340), (15, 1928584), (20, 1446438), (21, 1377560), (24, 1205365), (28, 1033170), (30, 964292), (35, 826536), (40, 723219), (42, 688780), (56, 516585), (60, 482146), (70, 413268), (84, 344390), (105, 275512), (120, 241073), (140, 206634), (168, 172195), (210, 137756), (280, 103317), (420, 68878), (840, 34439)]