28376560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 69040224

約数和(自身を除く): 40663664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 73, 80, 86, 113, 146, 172, 215, 226, 292, 344, 365, 430, 452, 565, 584, 688, 730, 860, 904, 1130, 1168, 1460, 1720, 1808, 2260, 2920, 3139, 3440, 4520, 4859, 5840, 6278, 8249, 9040, 9718, 12556, 15695, 16498, 19436, 24295, 25112, 31390, 32996, 38872, 41245, 48590, 50224, 62780, 65992, 77744, 82490, 97180, 125560, 131984, 164980, 194360, 251120, 329960, 354707, 388720, 659920, 709414, 1418828, 1773535, 2837656, 3547070, 5675312, 7094140, 14188280, 28376560]

約数ペア:

[(1, 28376560), (2, 14188280), (4, 7094140), (5, 5675312), (8, 3547070), (10, 2837656), (16, 1773535), (20, 1418828), (40, 709414), (43, 659920), (73, 388720), (80, 354707), (86, 329960), (113, 251120), (146, 194360), (172, 164980), (215, 131984), (226, 125560), (292, 97180), (344, 82490), (365, 77744), (430, 65992), (452, 62780), (565, 50224), (584, 48590), (688, 41245), (730, 38872), (860, 32996), (904, 31390), (1130, 25112), (1168, 24295), (1460, 19436), (1720, 16498), (1808, 15695), (2260, 12556), (2920, 9718), (3139, 9040), (3440, 8249), (4520, 6278), (4859, 5840)]