644026850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{12791}}^1$

素因数の和:12875

約数の個数: 48

約数和(自身を含む): 1284828480

約数和(自身を除く): 640801630

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 53, 95, 106, 190, 265, 475, 530, 950, 1007, 1325, 2014, 2650, 5035, 10070, 12791, 25175, 25582, 50350, 63955, 127910, 243029, 319775, 486058, 639550, 677923, 1215145, 1355846, 2430290, 3389615, 6075725, 6779230, 12151450, 12880537, 16948075, 25761074, 33896150, 64402685, 128805370, 322013425, 644026850]

約数ペア:

[(1, 644026850), (2, 322013425), (5, 128805370), (10, 64402685), (19, 33896150), (25, 25761074), (38, 16948075), (50, 12880537), (53, 12151450), (95, 6779230), (106, 6075725), (190, 3389615), (265, 2430290), (475, 1355846), (530, 1215145), (950, 677923), (1007, 639550), (1325, 486058), (2014, 319775), (2650, 243029), (5035, 127910), (10070, 63955), (12791, 50350), (25175, 25582)]