2156625

素因数分解:

$3^5\times 5^3\times {\mathrm{71}}^1$

素因数の和:101

約数の個数: 48

約数和(自身を含む): 4088448

約数和(自身を除く): 1931823

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 125, 135, 213, 225, 243, 355, 375, 405, 639, 675, 1065, 1125, 1215, 1775, 1917, 2025, 3195, 3375, 5325, 5751, 6075, 8875, 9585, 10125, 15975, 17253, 26625, 28755, 30375, 47925, 79875, 86265, 143775, 239625, 431325, 718875, 2156625]

約数ペア:

[(1, 2156625), (3, 718875), (5, 431325), (9, 239625), (15, 143775), (25, 86265), (27, 79875), (45, 47925), (71, 30375), (75, 28755), (81, 26625), (125, 17253), (135, 15975), (213, 10125), (225, 9585), (243, 8875), (355, 6075), (375, 5751), (405, 5325), (639, 3375), (675, 3195), (1065, 2025), (1125, 1917), (1215, 1775)]