20888970075

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{31019}}^1$

素因数の和:31149

約数の個数: 72

約数和(自身を含む): 38853294480

約数和(自身を除く): 17964324405

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 73, 75, 123, 205, 219, 225, 365, 369, 615, 657, 1025, 1095, 1825, 1845, 2993, 3075, 3285, 5475, 8979, 9225, 14965, 16425, 26937, 31019, 44895, 74825, 93057, 134685, 155095, 224475, 279171, 465285, 673425, 775475, 1271779, 1395855, 2264387, 2326425, 3815337, 6358895, 6793161, 6979275, 11321935, 11446011, 19076685, 20379483, 31794475, 33965805, 56609675, 57230055, 92839867, 95383425, 101897415, 169829025, 278519601, 286150275, 464199335, 509487075, 835558803, 1392598005, 2320996675, 4177794015, 6962990025, 20888970075]

約数ペア:

[(1, 20888970075), (3, 6962990025), (5, 4177794015), (9, 2320996675), (15, 1392598005), (25, 835558803), (41, 509487075), (45, 464199335), (73, 286150275), (75, 278519601), (123, 169829025), (205, 101897415), (219, 95383425), (225, 92839867), (365, 57230055), (369, 56609675), (615, 33965805), (657, 31794475), (1025, 20379483), (1095, 19076685), (1825, 11446011), (1845, 11321935), (2993, 6979275), (3075, 6793161), (3285, 6358895), (5475, 3815337), (8979, 2326425), (9225, 2264387), (14965, 1395855), (16425, 1271779), (26937, 775475), (31019, 673425), (44895, 465285), (74825, 279171), (93057, 224475), (134685, 155095)]