20797057100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{421847}}^1$

素因数の和:421907

約数の個数: 72

約数和(自身を含む): 49432148640

約数和(自身を除く): 28635091540

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 425, 493, 580, 725, 850, 986, 1450, 1700, 1972, 2465, 2900, 4930, 9860, 12325, 24650, 49300, 421847, 843694, 1687388, 2109235, 4218470, 7171399, 8436940, 10546175, 12233563, 14342798, 21092350, 24467126, 28685596, 35856995, 42184700, 48934252, 61167815, 71713990, 122335630, 143427980, 179284975, 207970571, 244671260, 305839075, 358569950, 415941142, 611678150, 717139900, 831882284, 1039852855, 1223356300, 2079705710, 4159411420, 5199264275, 10398528550, 20797057100]

約数ペア:

[(1, 20797057100), (2, 10398528550), (4, 5199264275), (5, 4159411420), (10, 2079705710), (17, 1223356300), (20, 1039852855), (25, 831882284), (29, 717139900), (34, 611678150), (50, 415941142), (58, 358569950), (68, 305839075), (85, 244671260), (100, 207970571), (116, 179284975), (145, 143427980), (170, 122335630), (290, 71713990), (340, 61167815), (425, 48934252), (493, 42184700), (580, 35856995), (725, 28685596), (850, 24467126), (986, 21092350), (1450, 14342798), (1700, 12233563), (1972, 10546175), (2465, 8436940), (2900, 7171399), (4930, 4218470), (9860, 2109235), (12325, 1687388), (24650, 843694), (49300, 421847)]