221544375

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 406744800

約数和(自身を除く): 185200425

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 125, 149, 183, 195, 305, 325, 375, 447, 625, 745, 793, 915, 975, 1525, 1625, 1875, 1937, 2235, 2379, 3725, 3965, 4575, 4875, 5811, 7625, 8125, 9089, 9685, 11175, 11895, 18625, 19825, 22875, 24375, 27267, 29055, 38125, 45445, 48425, 55875, 59475, 93125, 99125, 114375, 118157, 136335, 145275, 227225, 242125, 279375, 297375, 354471, 495625, 590785, 681675, 726375, 1136125, 1210625, 1486875, 1772355, 2953925, 3408375, 3631875, 5680625, 8861775, 14769625, 17041875, 44308875, 73848125, 221544375]

約数ペア:

[(1, 221544375), (3, 73848125), (5, 44308875), (13, 17041875), (15, 14769625), (25, 8861775), (39, 5680625), (61, 3631875), (65, 3408375), (75, 2953925), (125, 1772355), (149, 1486875), (183, 1210625), (195, 1136125), (305, 726375), (325, 681675), (375, 590785), (447, 495625), (625, 354471), (745, 297375), (793, 279375), (915, 242125), (975, 227225), (1525, 145275), (1625, 136335), (1875, 118157), (1937, 114375), (2235, 99125), (2379, 93125), (3725, 59475), (3965, 55875), (4575, 48425), (4875, 45445), (5811, 38125), (7625, 29055), (8125, 27267), (9089, 24375), (9685, 22875), (11175, 19825), (11895, 18625)]