664753700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{3257}}^1$

素因数の和:3441

約数の個数: 72

約数和(自身を含む): 1563853032

約数和(自身を除く): 899099332

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 157, 260, 314, 325, 628, 650, 785, 1300, 1570, 2041, 3140, 3257, 3925, 4082, 6514, 7850, 8164, 10205, 13028, 15700, 16285, 20410, 32570, 40820, 42341, 51025, 65140, 81425, 84682, 102050, 162850, 169364, 204100, 211705, 325700, 423410, 511349, 846820, 1022698, 1058525, 2045396, 2117050, 2556745, 4234100, 5113490, 6647537, 10226980, 12783725, 13295074, 25567450, 26590148, 33237685, 51134900, 66475370, 132950740, 166188425, 332376850, 664753700]

約数ペア:

[(1, 664753700), (2, 332376850), (4, 166188425), (5, 132950740), (10, 66475370), (13, 51134900), (20, 33237685), (25, 26590148), (26, 25567450), (50, 13295074), (52, 12783725), (65, 10226980), (100, 6647537), (130, 5113490), (157, 4234100), (260, 2556745), (314, 2117050), (325, 2045396), (628, 1058525), (650, 1022698), (785, 846820), (1300, 511349), (1570, 423410), (2041, 325700), (3140, 211705), (3257, 204100), (3925, 169364), (4082, 162850), (6514, 102050), (7850, 84682), (8164, 81425), (10205, 65140), (13028, 51025), (15700, 42341), (16285, 40820), (20410, 32570)]