64861750

素因数分解:

$2^1\times 5^3\times {\mathrm{401}}^1\times {\mathrm{647}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 121912128

約数和(自身を除く): 57050378

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 401, 647, 802, 1294, 2005, 3235, 4010, 6470, 10025, 16175, 20050, 32350, 50125, 80875, 100250, 161750, 259447, 518894, 1297235, 2594470, 6486175, 12972350, 32430875, 64861750]

約数ペア:

[(1, 64861750), (2, 32430875), (5, 12972350), (10, 6486175), (25, 2594470), (50, 1297235), (125, 518894), (250, 259447), (401, 161750), (647, 100250), (802, 80875), (1294, 50125), (2005, 32350), (3235, 20050), (4010, 16175), (6470, 10025)]