207761820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{494671}}^1$

素因数の和:494690

約数の個数: 48

約数和(自身を含む): 664839168

約数和(自身を除く): 457077348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 494671, 989342, 1484013, 1978684, 2473355, 2968026, 3462697, 4946710, 5936052, 6925394, 7420065, 9893420, 10388091, 13850788, 14840130, 17313485, 20776182, 29680260, 34626970, 41552364, 51940455, 69253940, 103880910, 207761820]

約数ペア:

[(1, 207761820), (2, 103880910), (3, 69253940), (4, 51940455), (5, 41552364), (6, 34626970), (7, 29680260), (10, 20776182), (12, 17313485), (14, 14840130), (15, 13850788), (20, 10388091), (21, 9893420), (28, 7420065), (30, 6925394), (35, 5936052), (42, 4946710), (60, 3462697), (70, 2968026), (84, 2473355), (105, 1978684), (140, 1484013), (210, 989342), (420, 494671)]