203908900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1553}}^1$

素因数の和:1681

約数の個数: 72

約数和(自身を含む): 481547304

約数和(自身を除く): 277638404

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 101, 130, 202, 260, 325, 404, 505, 650, 1010, 1300, 1313, 1553, 2020, 2525, 2626, 3106, 5050, 5252, 6212, 6565, 7765, 10100, 13130, 15530, 20189, 26260, 31060, 32825, 38825, 40378, 65650, 77650, 80756, 100945, 131300, 155300, 156853, 201890, 313706, 403780, 504725, 627412, 784265, 1009450, 1568530, 2018900, 2039089, 3137060, 3921325, 4078178, 7842650, 8156356, 10195445, 15685300, 20390890, 40781780, 50977225, 101954450, 203908900]

約数ペア:

[(1, 203908900), (2, 101954450), (4, 50977225), (5, 40781780), (10, 20390890), (13, 15685300), (20, 10195445), (25, 8156356), (26, 7842650), (50, 4078178), (52, 3921325), (65, 3137060), (100, 2039089), (101, 2018900), (130, 1568530), (202, 1009450), (260, 784265), (325, 627412), (404, 504725), (505, 403780), (650, 313706), (1010, 201890), (1300, 156853), (1313, 155300), (1553, 131300), (2020, 100945), (2525, 80756), (2626, 77650), (3106, 65650), (5050, 40378), (5252, 38825), (6212, 32825), (6565, 31060), (7765, 26260), (10100, 20189), (13130, 15530)]