256431480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^2\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 96

約数和(自身を含む): 781922160

約数和(自身を除く): 525490680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 401, 438, 584, 730, 802, 876, 1095, 1203, 1460, 1604, 1752, 2005, 2190, 2406, 2920, 3208, 4010, 4380, 4812, 5329, 6015, 8020, 8760, 9624, 10658, 12030, 15987, 16040, 21316, 24060, 26645, 29273, 31974, 42632, 48120, 53290, 58546, 63948, 79935, 87819, 106580, 117092, 127896, 146365, 159870, 175638, 213160, 234184, 292730, 319740, 351276, 439095, 585460, 639480, 702552, 878190, 1170920, 1756380, 2136929, 3512760, 4273858, 6410787, 8547716, 10684645, 12821574, 17095432, 21369290, 25643148, 32053935, 42738580, 51286296, 64107870, 85477160, 128215740, 256431480]

約数ペア:

[(1, 256431480), (2, 128215740), (3, 85477160), (4, 64107870), (5, 51286296), (6, 42738580), (8, 32053935), (10, 25643148), (12, 21369290), (15, 17095432), (20, 12821574), (24, 10684645), (30, 8547716), (40, 6410787), (60, 4273858), (73, 3512760), (120, 2136929), (146, 1756380), (219, 1170920), (292, 878190), (365, 702552), (401, 639480), (438, 585460), (584, 439095), (730, 351276), (802, 319740), (876, 292730), (1095, 234184), (1203, 213160), (1460, 175638), (1604, 159870), (1752, 146365), (2005, 127896), (2190, 117092), (2406, 106580), (2920, 87819), (3208, 79935), (4010, 63948), (4380, 58546), (4812, 53290), (5329, 48120), (6015, 42632), (8020, 31974), (8760, 29273), (9624, 26645), (10658, 24060), (12030, 21316), (15987, 16040)]