1987875

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 3993600

約数和(自身を除く): 2005725

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 31, 45, 57, 75, 93, 95, 125, 135, 155, 171, 225, 279, 285, 375, 465, 475, 513, 589, 675, 775, 837, 855, 1125, 1395, 1425, 1767, 2325, 2375, 2565, 2945, 3375, 3875, 4185, 4275, 5301, 6975, 7125, 8835, 11625, 12825, 14725, 15903, 20925, 21375, 26505, 34875, 44175, 64125, 73625, 79515, 104625, 132525, 220875, 397575, 662625, 1987875]

約数ペア:

[(1, 1987875), (3, 662625), (5, 397575), (9, 220875), (15, 132525), (19, 104625), (25, 79515), (27, 73625), (31, 64125), (45, 44175), (57, 34875), (75, 26505), (93, 21375), (95, 20925), (125, 15903), (135, 14725), (155, 12825), (171, 11625), (225, 8835), (279, 7125), (285, 6975), (375, 5301), (465, 4275), (475, 4185), (513, 3875), (589, 3375), (675, 2945), (775, 2565), (837, 2375), (855, 2325), (1125, 1767), (1395, 1425)]