19612125

素因数分解:

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

素因数の和:189

約数の個数: 80

約数和(自身を含む): 39639600

約数和(自身を除く): 20027475

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 125, 135, 149, 195, 225, 325, 351, 375, 405, 447, 585, 675, 745, 975, 1053, 1125, 1341, 1625, 1755, 1937, 2025, 2235, 2925, 3375, 3725, 4023, 4875, 5265, 5811, 6705, 8775, 9685, 10125, 11175, 12069, 14625, 17433, 18625, 20115, 26325, 29055, 33525, 43875, 48425, 52299, 55875, 60345, 87165, 100575, 131625, 145275, 156897, 167625, 242125, 261495, 301725, 435825, 502875, 726375, 784485, 1307475, 1508625, 2179125, 3922425, 6537375, 19612125]

約数ペア:

[(1, 19612125), (3, 6537375), (5, 3922425), (9, 2179125), (13, 1508625), (15, 1307475), (25, 784485), (27, 726375), (39, 502875), (45, 435825), (65, 301725), (75, 261495), (81, 242125), (117, 167625), (125, 156897), (135, 145275), (149, 131625), (195, 100575), (225, 87165), (325, 60345), (351, 55875), (375, 52299), (405, 48425), (447, 43875), (585, 33525), (675, 29055), (745, 26325), (975, 20115), (1053, 18625), (1125, 17433), (1341, 14625), (1625, 12069), (1755, 11175), (1937, 10125), (2025, 9685), (2235, 8775), (2925, 6705), (3375, 5811), (3725, 5265), (4023, 4875)]