2006641625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 2688491520

約数和(自身を除く): 681849895

約数列:

[1, 5, 25, 31, 59, 67, 125, 131, 155, 295, 335, 655, 775, 1475, 1675, 1829, 2077, 3275, 3875, 3953, 4061, 7375, 7729, 8375, 8777, 9145, 10385, 16375, 19765, 20305, 38645, 43885, 45725, 51925, 98825, 101525, 122543, 193225, 219425, 228625, 239599, 259625, 272087, 494125, 507625, 517843, 612715, 966125, 1097125, 1197995, 1360435, 2589215, 3063575, 5989975, 6802175, 12946075, 15317875, 16053133, 29949875, 34010875, 64730375, 80265665, 401328325, 2006641625]

約数ペア:

[(1, 2006641625), (5, 401328325), (25, 80265665), (31, 64730375), (59, 34010875), (67, 29949875), (125, 16053133), (131, 15317875), (155, 12946075), (295, 6802175), (335, 5989975), (655, 3063575), (775, 2589215), (1475, 1360435), (1675, 1197995), (1829, 1097125), (2077, 966125), (3275, 612715), (3875, 517843), (3953, 507625), (4061, 494125), (7375, 272087), (7729, 259625), (8375, 239599), (8777, 228625), (9145, 219425), (10385, 193225), (16375, 122543), (19765, 101525), (20305, 98825), (38645, 51925), (43885, 45725)]