203462500

素因数分解:

$2^2\times 5^5\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 457048872

約数和(自身を除く): 253586372

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 397, 410, 500, 625, 794, 820, 1025, 1250, 1588, 1985, 2050, 2500, 3125, 3970, 4100, 5125, 6250, 7940, 9925, 10250, 12500, 16277, 19850, 20500, 25625, 32554, 39700, 49625, 51250, 65108, 81385, 99250, 102500, 128125, 162770, 198500, 248125, 256250, 325540, 406925, 496250, 512500, 813850, 992500, 1240625, 1627700, 2034625, 2481250, 4069250, 4962500, 8138500, 10173125, 20346250, 40692500, 50865625, 101731250, 203462500]

約数ペア:

[(1, 203462500), (2, 101731250), (4, 50865625), (5, 40692500), (10, 20346250), (20, 10173125), (25, 8138500), (41, 4962500), (50, 4069250), (82, 2481250), (100, 2034625), (125, 1627700), (164, 1240625), (205, 992500), (250, 813850), (397, 512500), (410, 496250), (500, 406925), (625, 325540), (794, 256250), (820, 248125), (1025, 198500), (1250, 162770), (1588, 128125), (1985, 102500), (2050, 99250), (2500, 81385), (3125, 65108), (3970, 51250), (4100, 49625), (5125, 39700), (6250, 32554), (7940, 25625), (9925, 20500), (10250, 19850), (12500, 16277)]