638435140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 1562529024

約数和(自身を除く): 924093884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 163, 202, 277, 326, 404, 505, 554, 652, 707, 815, 1010, 1108, 1141, 1385, 1414, 1630, 1939, 2020, 2282, 2770, 2828, 3260, 3535, 3878, 4564, 5540, 5705, 7070, 7756, 9695, 11410, 14140, 16463, 19390, 22820, 27977, 32926, 38780, 45151, 55954, 65852, 82315, 90302, 111908, 115241, 139885, 164630, 180604, 195839, 225755, 230482, 279770, 316057, 329260, 391678, 451510, 460964, 559540, 576205, 632114, 783356, 903020, 979195, 1152410, 1264228, 1580285, 1958390, 2304820, 3160570, 3916780, 4560251, 6321140, 9120502, 18241004, 22801255, 31921757, 45602510, 63843514, 91205020, 127687028, 159608785, 319217570, 638435140]

約数ペア:

[(1, 638435140), (2, 319217570), (4, 159608785), (5, 127687028), (7, 91205020), (10, 63843514), (14, 45602510), (20, 31921757), (28, 22801255), (35, 18241004), (70, 9120502), (101, 6321140), (140, 4560251), (163, 3916780), (202, 3160570), (277, 2304820), (326, 1958390), (404, 1580285), (505, 1264228), (554, 1152410), (652, 979195), (707, 903020), (815, 783356), (1010, 632114), (1108, 576205), (1141, 559540), (1385, 460964), (1414, 451510), (1630, 391678), (1939, 329260), (2020, 316057), (2282, 279770), (2770, 230482), (2828, 225755), (3260, 195839), (3535, 180604), (3878, 164630), (4564, 139885), (5540, 115241), (5705, 111908), (7070, 90302), (7756, 82315), (9695, 65852), (11410, 55954), (14140, 45151), (16463, 38780), (19390, 32926), (22820, 27977)]