28743975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 57412992

約数和(自身を除く): 28669017

約数列:

[1, 3, 5, 9, 13, 15, 25, 31, 39, 45, 65, 75, 93, 117, 155, 195, 225, 279, 317, 325, 403, 465, 585, 775, 951, 975, 1209, 1395, 1585, 2015, 2325, 2853, 2925, 3627, 4121, 4755, 6045, 6975, 7925, 9827, 10075, 12363, 14265, 18135, 20605, 23775, 29481, 30225, 37089, 49135, 61815, 71325, 88443, 90675, 103025, 127751, 147405, 185445, 245675, 309075, 383253, 442215, 638755, 737025, 927225, 1149759, 1916265, 2211075, 3193775, 5748795, 9581325, 28743975]

約数ペア:

[(1, 28743975), (3, 9581325), (5, 5748795), (9, 3193775), (13, 2211075), (15, 1916265), (25, 1149759), (31, 927225), (39, 737025), (45, 638755), (65, 442215), (75, 383253), (93, 309075), (117, 245675), (155, 185445), (195, 147405), (225, 127751), (279, 103025), (317, 90675), (325, 88443), (403, 71325), (465, 61815), (585, 49135), (775, 37089), (951, 30225), (975, 29481), (1209, 23775), (1395, 20605), (1585, 18135), (2015, 14265), (2325, 12363), (2853, 10075), (2925, 9827), (3627, 7925), (4121, 6975), (4755, 6045)]