420557930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 833172480

約数和(自身を除く): 412614550

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 163, 178, 223, 326, 445, 446, 815, 890, 1115, 1157, 1630, 2119, 2230, 2314, 2899, 4238, 5785, 5798, 10595, 11570, 14495, 14507, 19847, 21190, 28990, 29014, 36349, 39694, 72535, 72698, 99235, 145070, 181745, 188591, 198470, 258011, 363490, 377182, 472537, 516022, 942955, 945074, 1290055, 1885910, 2362685, 2580110, 3235061, 4725370, 6470122, 16175305, 32350610, 42055793, 84111586, 210278965, 420557930]

約数ペア:

[(1, 420557930), (2, 210278965), (5, 84111586), (10, 42055793), (13, 32350610), (26, 16175305), (65, 6470122), (89, 4725370), (130, 3235061), (163, 2580110), (178, 2362685), (223, 1885910), (326, 1290055), (445, 945074), (446, 942955), (815, 516022), (890, 472537), (1115, 377182), (1157, 363490), (1630, 258011), (2119, 198470), (2230, 188591), (2314, 181745), (2899, 145070), (4238, 99235), (5785, 72698), (5798, 72535), (10595, 39694), (11570, 36349), (14495, 29014), (14507, 28990), (19847, 21190)]