31689440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6435

約数の個数: 48

約数和(自身を含む): 77293440

約数和(自身を除く): 45604000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 6389, 12778, 25556, 31945, 51112, 63890, 102224, 127780, 198059, 204448, 255560, 396118, 511120, 792236, 990295, 1022240, 1584472, 1980590, 3168944, 3961180, 6337888, 7922360, 15844720, 31689440]

約数ペア:

[(1, 31689440), (2, 15844720), (4, 7922360), (5, 6337888), (8, 3961180), (10, 3168944), (16, 1980590), (20, 1584472), (31, 1022240), (32, 990295), (40, 792236), (62, 511120), (80, 396118), (124, 255560), (155, 204448), (160, 198059), (248, 127780), (310, 102224), (496, 63890), (620, 51112), (992, 31945), (1240, 25556), (2480, 12778), (4960, 6389)]