12445000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:176

約数の個数: 80

約数和(自身を含む): 30927600

約数和(自身を除く): 18482600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 131, 152, 190, 200, 250, 262, 380, 475, 500, 524, 625, 655, 760, 950, 1000, 1048, 1250, 1310, 1900, 2375, 2489, 2500, 2620, 3275, 3800, 4750, 4978, 5000, 5240, 6550, 9500, 9956, 11875, 12445, 13100, 16375, 19000, 19912, 23750, 24890, 26200, 32750, 47500, 49780, 62225, 65500, 81875, 95000, 99560, 124450, 131000, 163750, 248900, 311125, 327500, 497800, 622250, 655000, 1244500, 1555625, 2489000, 3111250, 6222500, 12445000]

約数ペア:

[(1, 12445000), (2, 6222500), (4, 3111250), (5, 2489000), (8, 1555625), (10, 1244500), (19, 655000), (20, 622250), (25, 497800), (38, 327500), (40, 311125), (50, 248900), (76, 163750), (95, 131000), (100, 124450), (125, 99560), (131, 95000), (152, 81875), (190, 65500), (200, 62225), (250, 49780), (262, 47500), (380, 32750), (475, 26200), (500, 24890), (524, 23750), (625, 19912), (655, 19000), (760, 16375), (950, 13100), (1000, 12445), (1048, 11875), (1250, 9956), (1310, 9500), (1900, 6550), (2375, 5240), (2489, 5000), (2500, 4978), (2620, 4750), (3275, 3800)]