680005000

素因数分解:

$2^3\times 5^4\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 1602049680

約数和(自身を除く): 922044680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 307, 443, 500, 614, 625, 886, 1000, 1228, 1250, 1535, 1772, 2215, 2456, 2500, 3070, 3544, 4430, 5000, 6140, 7675, 8860, 11075, 12280, 15350, 17720, 22150, 30700, 38375, 44300, 55375, 61400, 76750, 88600, 110750, 136001, 153500, 191875, 221500, 272002, 276875, 307000, 383750, 443000, 544004, 553750, 680005, 767500, 1088008, 1107500, 1360010, 1535000, 2215000, 2720020, 3400025, 5440040, 6800050, 13600100, 17000125, 27200200, 34000250, 68000500, 85000625, 136001000, 170001250, 340002500, 680005000]

約数ペア:

[(1, 680005000), (2, 340002500), (4, 170001250), (5, 136001000), (8, 85000625), (10, 68000500), (20, 34000250), (25, 27200200), (40, 17000125), (50, 13600100), (100, 6800050), (125, 5440040), (200, 3400025), (250, 2720020), (307, 2215000), (443, 1535000), (500, 1360010), (614, 1107500), (625, 1088008), (886, 767500), (1000, 680005), (1228, 553750), (1250, 544004), (1535, 443000), (1772, 383750), (2215, 307000), (2456, 276875), (2500, 272002), (3070, 221500), (3544, 191875), (4430, 153500), (5000, 136001), (6140, 110750), (7675, 88600), (8860, 76750), (11075, 61400), (12280, 55375), (15350, 44300), (17720, 38375), (22150, 30700)]