7990515

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 15926400

約数和(自身を除く): 7935885

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 87, 117, 135, 145, 157, 195, 261, 351, 377, 435, 471, 585, 783, 785, 1131, 1305, 1413, 1755, 1885, 2041, 2355, 3393, 3915, 4239, 4553, 5655, 6123, 7065, 10179, 10205, 13659, 16965, 18369, 21195, 22765, 30615, 40977, 50895, 55107, 59189, 68295, 91845, 122931, 177567, 204885, 275535, 295945, 532701, 614655, 887835, 1598103, 2663505, 7990515]

約数ペア:

[(1, 7990515), (3, 2663505), (5, 1598103), (9, 887835), (13, 614655), (15, 532701), (27, 295945), (29, 275535), (39, 204885), (45, 177567), (65, 122931), (87, 91845), (117, 68295), (135, 59189), (145, 55107), (157, 50895), (195, 40977), (261, 30615), (351, 22765), (377, 21195), (435, 18369), (471, 16965), (585, 13659), (783, 10205), (785, 10179), (1131, 7065), (1305, 6123), (1413, 5655), (1755, 4553), (1885, 4239), (2041, 3915), (2355, 3393)]