20451000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 128

約数和(自身を含む): 67728960

約数和(自身を除く): 47277960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 25, 30, 34, 40, 50, 51, 60, 68, 75, 85, 100, 102, 120, 125, 136, 150, 170, 200, 204, 250, 255, 300, 340, 375, 401, 408, 425, 500, 510, 600, 680, 750, 802, 850, 1000, 1020, 1203, 1275, 1500, 1604, 1700, 2005, 2040, 2125, 2406, 2550, 3000, 3208, 3400, 4010, 4250, 4812, 5100, 6015, 6375, 6817, 8020, 8500, 9624, 10025, 10200, 12030, 12750, 13634, 16040, 17000, 20050, 20451, 24060, 25500, 27268, 30075, 34085, 40100, 40902, 48120, 50125, 51000, 54536, 60150, 68170, 80200, 81804, 100250, 102255, 120300, 136340, 150375, 163608, 170425, 200500, 204510, 240600, 272680, 300750, 340850, 401000, 409020, 511275, 601500, 681700, 818040, 852125, 1022550, 1203000, 1363400, 1704250, 2045100, 2556375, 3408500, 4090200, 5112750, 6817000, 10225500, 20451000]

約数ペア:

[(1, 20451000), (2, 10225500), (3, 6817000), (4, 5112750), (5, 4090200), (6, 3408500), (8, 2556375), (10, 2045100), (12, 1704250), (15, 1363400), (17, 1203000), (20, 1022550), (24, 852125), (25, 818040), (30, 681700), (34, 601500), (40, 511275), (50, 409020), (51, 401000), (60, 340850), (68, 300750), (75, 272680), (85, 240600), (100, 204510), (102, 200500), (120, 170425), (125, 163608), (136, 150375), (150, 136340), (170, 120300), (200, 102255), (204, 100250), (250, 81804), (255, 80200), (300, 68170), (340, 60150), (375, 54536), (401, 51000), (408, 50125), (425, 48120), (500, 40902), (510, 40100), (600, 34085), (680, 30075), (750, 27268), (802, 25500), (850, 24060), (1000, 20451), (1020, 20050), (1203, 17000), (1275, 16040), (1500, 13634), (1604, 12750), (1700, 12030), (2005, 10200), (2040, 10025), (2125, 9624), (2406, 8500), (2550, 8020), (3000, 6817), (3208, 6375), (3400, 6015), (4010, 5100), (4250, 4812)]