1984905

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 60

約数和(自身を含む): 3985740

約数和(自身を除く): 2000835

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 81, 87, 117, 135, 145, 169, 195, 261, 351, 377, 405, 435, 507, 585, 783, 845, 1053, 1131, 1305, 1521, 1755, 1885, 2349, 2535, 3393, 3915, 4563, 4901, 5265, 5655, 7605, 10179, 11745, 13689, 14703, 16965, 22815, 24505, 30537, 44109, 50895, 68445, 73515, 132327, 152685, 220545, 396981, 661635, 1984905]

約数ペア:

[(1, 1984905), (3, 661635), (5, 396981), (9, 220545), (13, 152685), (15, 132327), (27, 73515), (29, 68445), (39, 50895), (45, 44109), (65, 30537), (81, 24505), (87, 22815), (117, 16965), (135, 14703), (145, 13689), (169, 11745), (195, 10179), (261, 7605), (351, 5655), (377, 5265), (405, 4901), (435, 4563), (507, 3915), (585, 3393), (783, 2535), (845, 2349), (1053, 1885), (1131, 1755), (1305, 1521)]