316996875

素因数分解:

$3^3\times 5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 671519520

約数和(自身を除く): 354522645

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 27, 39, 45, 51, 65, 75, 85, 117, 125, 135, 153, 195, 221, 225, 255, 289, 325, 351, 375, 425, 459, 585, 625, 663, 675, 765, 867, 975, 1105, 1125, 1275, 1445, 1625, 1755, 1875, 1989, 2125, 2295, 2601, 2925, 3125, 3315, 3375, 3757, 3825, 4335, 4875, 5525, 5625, 5967, 6375, 7225, 7803, 8125, 8775, 9375, 9945, 10625, 11271, 11475, 13005, 14625, 16575, 16875, 18785, 19125, 21675, 24375, 27625, 28125, 29835, 31875, 33813, 36125, 39015, 40625, 43875, 49725, 53125, 56355, 57375, 65025, 73125, 82875, 84375, 93925, 95625, 101439, 108375, 121875, 138125, 149175, 159375, 169065, 180625, 195075, 219375, 248625, 281775, 286875, 325125, 365625, 414375, 469625, 478125, 507195, 541875, 690625, 745875, 845325, 903125, 975375, 1096875, 1243125, 1408875, 1434375, 1625625, 2071875, 2348125, 2535975, 2709375, 3729375, 4226625, 4876875, 6215625, 7044375, 8128125, 11740625, 12679875, 18646875, 21133125, 24384375, 35221875, 63399375, 105665625, 316996875]

約数ペア:

[(1, 316996875), (3, 105665625), (5, 63399375), (9, 35221875), (13, 24384375), (15, 21133125), (17, 18646875), (25, 12679875), (27, 11740625), (39, 8128125), (45, 7044375), (51, 6215625), (65, 4876875), (75, 4226625), (85, 3729375), (117, 2709375), (125, 2535975), (135, 2348125), (153, 2071875), (195, 1625625), (221, 1434375), (225, 1408875), (255, 1243125), (289, 1096875), (325, 975375), (351, 903125), (375, 845325), (425, 745875), (459, 690625), (585, 541875), (625, 507195), (663, 478125), (675, 469625), (765, 414375), (867, 365625), (975, 325125), (1105, 286875), (1125, 281775), (1275, 248625), (1445, 219375), (1625, 195075), (1755, 180625), (1875, 169065), (1989, 159375), (2125, 149175), (2295, 138125), (2601, 121875), (2925, 108375), (3125, 101439), (3315, 95625), (3375, 93925), (3757, 84375), (3825, 82875), (4335, 73125), (4875, 65025), (5525, 57375), (5625, 56355), (5967, 53125), (6375, 49725), (7225, 43875), (7803, 40625), (8125, 39015), (8775, 36125), (9375, 33813), (9945, 31875), (10625, 29835), (11271, 28125), (11475, 27625), (13005, 24375), (14625, 21675), (16575, 19125), (16875, 18785)]