18061875

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:71

約数の個数: 90

約数和(自身を含む): 37159980

約数和(自身を除く): 19098105

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 125, 169, 171, 195, 225, 247, 285, 325, 375, 475, 507, 585, 625, 741, 845, 855, 975, 1125, 1235, 1425, 1521, 1625, 1875, 2223, 2375, 2535, 2925, 3211, 3705, 4225, 4275, 4875, 5625, 6175, 7125, 7605, 8125, 9633, 11115, 11875, 12675, 14625, 16055, 18525, 21125, 21375, 24375, 28899, 30875, 35625, 38025, 48165, 55575, 63375, 73125, 80275, 92625, 105625, 106875, 144495, 154375, 190125, 240825, 277875, 316875, 401375, 463125, 722475, 950625, 1204125, 1389375, 2006875, 3612375, 6020625, 18061875]

約数ペア:

[(1, 18061875), (3, 6020625), (5, 3612375), (9, 2006875), (13, 1389375), (15, 1204125), (19, 950625), (25, 722475), (39, 463125), (45, 401375), (57, 316875), (65, 277875), (75, 240825), (95, 190125), (117, 154375), (125, 144495), (169, 106875), (171, 105625), (195, 92625), (225, 80275), (247, 73125), (285, 63375), (325, 55575), (375, 48165), (475, 38025), (507, 35625), (585, 30875), (625, 28899), (741, 24375), (845, 21375), (855, 21125), (975, 18525), (1125, 16055), (1235, 14625), (1425, 12675), (1521, 11875), (1625, 11115), (1875, 9633), (2223, 8125), (2375, 7605), (2535, 7125), (2925, 6175), (3211, 5625), (3705, 4875), (4225, 4275)]