19672020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{373}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 60035976

約数和(自身を除く): 40363956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 293, 373, 586, 746, 879, 1119, 1172, 1465, 1492, 1758, 1865, 2238, 2637, 2930, 3357, 3516, 3730, 4395, 4476, 5274, 5595, 5860, 6714, 7460, 8790, 10548, 11190, 13185, 13428, 16785, 17580, 22380, 26370, 33570, 52740, 67140, 109289, 218578, 327867, 437156, 546445, 655734, 983601, 1092890, 1311468, 1639335, 1967202, 2185780, 3278670, 3934404, 4918005, 6557340, 9836010, 19672020]

約数ペア:

[(1, 19672020), (2, 9836010), (3, 6557340), (4, 4918005), (5, 3934404), (6, 3278670), (9, 2185780), (10, 1967202), (12, 1639335), (15, 1311468), (18, 1092890), (20, 983601), (30, 655734), (36, 546445), (45, 437156), (60, 327867), (90, 218578), (180, 109289), (293, 67140), (373, 52740), (586, 33570), (746, 26370), (879, 22380), (1119, 17580), (1172, 16785), (1465, 13428), (1492, 13185), (1758, 11190), (1865, 10548), (2238, 8790), (2637, 7460), (2930, 6714), (3357, 5860), (3516, 5595), (3730, 5274), (4395, 4476)]