81881700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1429}}^1$

素因数の和:1637

約数の個数: 72

約数和(自身を含む): 238318080

約数和(自身を除く): 156436380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 191, 300, 382, 573, 764, 955, 1146, 1429, 1910, 2292, 2858, 2865, 3820, 4287, 4775, 5716, 5730, 7145, 8574, 9550, 11460, 14290, 14325, 17148, 19100, 21435, 28580, 28650, 35725, 42870, 57300, 71450, 85740, 107175, 142900, 214350, 272939, 428700, 545878, 818817, 1091756, 1364695, 1637634, 2729390, 3275268, 4094085, 5458780, 6823475, 8188170, 13646950, 16376340, 20470425, 27293900, 40940850, 81881700]

約数ペア:

[(1, 81881700), (2, 40940850), (3, 27293900), (4, 20470425), (5, 16376340), (6, 13646950), (10, 8188170), (12, 6823475), (15, 5458780), (20, 4094085), (25, 3275268), (30, 2729390), (50, 1637634), (60, 1364695), (75, 1091756), (100, 818817), (150, 545878), (191, 428700), (300, 272939), (382, 214350), (573, 142900), (764, 107175), (955, 85740), (1146, 71450), (1429, 57300), (1910, 42870), (2292, 35725), (2858, 28650), (2865, 28580), (3820, 21435), (4287, 19100), (4775, 17148), (5716, 14325), (5730, 14290), (7145, 11460), (8574, 9550)]