20569275

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 39045120

約数和(自身を除く): 18475845

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 983, 1395, 2325, 2949, 4185, 4915, 6975, 8847, 14745, 20925, 24575, 26541, 30473, 44235, 73725, 91419, 132705, 152365, 221175, 274257, 457095, 663525, 761825, 822771, 1371285, 2285475, 4113855, 6856425, 20569275]

約数ペア:

[(1, 20569275), (3, 6856425), (5, 4113855), (9, 2285475), (15, 1371285), (25, 822771), (27, 761825), (31, 663525), (45, 457095), (75, 274257), (93, 221175), (135, 152365), (155, 132705), (225, 91419), (279, 73725), (465, 44235), (675, 30473), (775, 26541), (837, 24575), (983, 20925), (1395, 14745), (2325, 8847), (2949, 6975), (4185, 4915)]