210080900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1$

素因数の和:869

約数の個数: 72

約数和(自身を含む): 485968896

約数和(自身を除く): 275887996

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 191, 340, 382, 425, 647, 764, 850, 955, 1294, 1700, 1910, 2588, 3235, 3247, 3820, 4775, 6470, 6494, 9550, 10999, 12940, 12988, 16175, 16235, 19100, 21998, 32350, 32470, 43996, 54995, 64700, 64940, 81175, 109990, 123577, 162350, 219980, 247154, 274975, 324700, 494308, 549950, 617885, 1099900, 1235770, 2100809, 2471540, 3089425, 4201618, 6178850, 8403236, 10504045, 12357700, 21008090, 42016180, 52520225, 105040450, 210080900]

約数ペア:

[(1, 210080900), (2, 105040450), (4, 52520225), (5, 42016180), (10, 21008090), (17, 12357700), (20, 10504045), (25, 8403236), (34, 6178850), (50, 4201618), (68, 3089425), (85, 2471540), (100, 2100809), (170, 1235770), (191, 1099900), (340, 617885), (382, 549950), (425, 494308), (647, 324700), (764, 274975), (850, 247154), (955, 219980), (1294, 162350), (1700, 123577), (1910, 109990), (2588, 81175), (3235, 64940), (3247, 64700), (3820, 54995), (4775, 43996), (6470, 32470), (6494, 32350), (9550, 21998), (10999, 19100), (12940, 16235), (12988, 16175)]