66981100

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 153111728

約数和(自身を除く): 86130628

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 43, 50, 74, 86, 100, 148, 172, 185, 215, 370, 421, 430, 740, 842, 860, 925, 1075, 1591, 1684, 1850, 2105, 2150, 3182, 3700, 4210, 4300, 6364, 7955, 8420, 10525, 15577, 15910, 18103, 21050, 31154, 31820, 36206, 39775, 42100, 62308, 72412, 77885, 79550, 90515, 155770, 159100, 181030, 311540, 362060, 389425, 452575, 669811, 778850, 905150, 1339622, 1557700, 1810300, 2679244, 3349055, 6698110, 13396220, 16745275, 33490550, 66981100]

約数ペア:

[(1, 66981100), (2, 33490550), (4, 16745275), (5, 13396220), (10, 6698110), (20, 3349055), (25, 2679244), (37, 1810300), (43, 1557700), (50, 1339622), (74, 905150), (86, 778850), (100, 669811), (148, 452575), (172, 389425), (185, 362060), (215, 311540), (370, 181030), (421, 159100), (430, 155770), (740, 90515), (842, 79550), (860, 77885), (925, 72412), (1075, 62308), (1591, 42100), (1684, 39775), (1850, 36206), (2105, 31820), (2150, 31154), (3182, 21050), (3700, 18103), (4210, 15910), (4300, 15577), (6364, 10525), (7955, 8420)]