39955000

素因数分解:

$2^3\times 5^4\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 95875560

約数和(自身を除く): 55920560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 131, 200, 244, 250, 262, 305, 488, 500, 524, 610, 625, 655, 1000, 1048, 1220, 1250, 1310, 1525, 2440, 2500, 2620, 3050, 3275, 5000, 5240, 6100, 6550, 7625, 7991, 12200, 13100, 15250, 15982, 16375, 26200, 30500, 31964, 32750, 38125, 39955, 61000, 63928, 65500, 76250, 79910, 81875, 131000, 152500, 159820, 163750, 199775, 305000, 319640, 327500, 399550, 655000, 799100, 998875, 1598200, 1997750, 3995500, 4994375, 7991000, 9988750, 19977500, 39955000]

約数ペア:

[(1, 39955000), (2, 19977500), (4, 9988750), (5, 7991000), (8, 4994375), (10, 3995500), (20, 1997750), (25, 1598200), (40, 998875), (50, 799100), (61, 655000), (100, 399550), (122, 327500), (125, 319640), (131, 305000), (200, 199775), (244, 163750), (250, 159820), (262, 152500), (305, 131000), (488, 81875), (500, 79910), (524, 76250), (610, 65500), (625, 63928), (655, 61000), (1000, 39955), (1048, 38125), (1220, 32750), (1250, 31964), (1310, 30500), (1525, 26200), (2440, 16375), (2500, 15982), (2620, 15250), (3050, 13100), (3275, 12200), (5000, 7991), (5240, 7625), (6100, 6550)]