217897875

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 433375488

約数和(自身を除く): 215477613

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 47, 65, 75, 117, 125, 141, 195, 225, 235, 317, 325, 375, 423, 585, 611, 705, 951, 975, 1125, 1175, 1585, 1625, 1833, 2115, 2853, 2925, 3055, 3525, 4121, 4755, 4875, 5499, 5875, 7925, 9165, 10575, 12363, 14265, 14625, 14899, 15275, 17625, 20605, 23775, 27495, 37089, 39625, 44697, 45825, 52875, 61815, 71325, 74495, 76375, 103025, 118875, 134091, 137475, 185445, 193687, 223485, 229125, 309075, 356625, 372475, 515125, 581061, 670455, 687375, 927225, 968435, 1117425, 1545375, 1743183, 1862375, 2905305, 3352275, 4636125, 4842175, 5587125, 8715915, 14526525, 16761375, 24210875, 43579575, 72632625, 217897875]

約数ペア:

[(1, 217897875), (3, 72632625), (5, 43579575), (9, 24210875), (13, 16761375), (15, 14526525), (25, 8715915), (39, 5587125), (45, 4842175), (47, 4636125), (65, 3352275), (75, 2905305), (117, 1862375), (125, 1743183), (141, 1545375), (195, 1117425), (225, 968435), (235, 927225), (317, 687375), (325, 670455), (375, 581061), (423, 515125), (585, 372475), (611, 356625), (705, 309075), (951, 229125), (975, 223485), (1125, 193687), (1175, 185445), (1585, 137475), (1625, 134091), (1833, 118875), (2115, 103025), (2853, 76375), (2925, 74495), (3055, 71325), (3525, 61815), (4121, 52875), (4755, 45825), (4875, 44697), (5499, 39625), (5875, 37089), (7925, 27495), (9165, 23775), (10575, 20605), (12363, 17625), (14265, 15275), (14625, 14899)]