19803375

素因数分解:

$3^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{607}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 36990720

約数和(自身を除く): 17187345

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 607, 725, 1125, 1305, 1821, 2175, 3035, 3625, 5463, 6525, 9105, 10875, 15175, 17603, 27315, 32625, 45525, 52809, 75875, 88015, 136575, 158427, 227625, 264045, 440075, 682875, 792135, 1320225, 2200375, 3960675, 6601125, 19803375]

約数ペア:

[(1, 19803375), (3, 6601125), (5, 3960675), (9, 2200375), (15, 1320225), (25, 792135), (29, 682875), (45, 440075), (75, 264045), (87, 227625), (125, 158427), (145, 136575), (225, 88015), (261, 75875), (375, 52809), (435, 45525), (607, 32625), (725, 27315), (1125, 17603), (1305, 15175), (1821, 10875), (2175, 9105), (3035, 6525), (3625, 5463)]