18776775

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 32810400

約数和(自身を除く): 14033625

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 89, 97, 145, 267, 291, 435, 445, 485, 725, 1335, 1455, 2175, 2225, 2425, 2581, 2813, 6675, 7275, 7743, 8439, 8633, 12905, 14065, 25899, 38715, 42195, 43165, 64525, 70325, 129495, 193575, 210975, 215825, 250357, 647475, 751071, 1251785, 3755355, 6258925, 18776775]

約数ペア:

[(1, 18776775), (3, 6258925), (5, 3755355), (15, 1251785), (25, 751071), (29, 647475), (75, 250357), (87, 215825), (89, 210975), (97, 193575), (145, 129495), (267, 70325), (291, 64525), (435, 43165), (445, 42195), (485, 38715), (725, 25899), (1335, 14065), (1455, 12905), (2175, 8633), (2225, 8439), (2425, 7743), (2581, 7275), (2813, 6675)]