201981195

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{227}}^1$

素因数の和:283

約数の個数: 80

約数和(自身を含む): 393956640

約数和(自身を除く): 191975445

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 169, 195, 227, 351, 405, 507, 585, 681, 845, 1053, 1135, 1521, 1755, 2043, 2197, 2535, 2951, 3405, 4563, 5265, 6129, 6591, 7605, 8853, 10215, 10985, 13689, 14755, 18387, 19773, 22815, 26559, 30645, 32955, 38363, 44265, 59319, 68445, 79677, 91935, 98865, 115089, 132795, 177957, 191815, 239031, 296595, 345267, 398385, 498719, 575445, 889785, 1035801, 1195155, 1496157, 1726335, 2493595, 3107403, 4488471, 5179005, 7480785, 13465413, 15537015, 22442355, 40396239, 67327065, 201981195]

約数ペア:

[(1, 201981195), (3, 67327065), (5, 40396239), (9, 22442355), (13, 15537015), (15, 13465413), (27, 7480785), (39, 5179005), (45, 4488471), (65, 3107403), (81, 2493595), (117, 1726335), (135, 1496157), (169, 1195155), (195, 1035801), (227, 889785), (351, 575445), (405, 498719), (507, 398385), (585, 345267), (681, 296595), (845, 239031), (1053, 191815), (1135, 177957), (1521, 132795), (1755, 115089), (2043, 98865), (2197, 91935), (2535, 79677), (2951, 68445), (3405, 59319), (4563, 44265), (5265, 38363), (6129, 32955), (6591, 30645), (7605, 26559), (8853, 22815), (10215, 19773), (10985, 18387), (13689, 14755)]