18806910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 28332930

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 61, 86, 122, 129, 183, 215, 239, 258, 305, 366, 430, 478, 610, 645, 717, 915, 1195, 1290, 1434, 1830, 2390, 2623, 3585, 5246, 7170, 7869, 10277, 13115, 14579, 15738, 20554, 26230, 29158, 30831, 39345, 43737, 51385, 61662, 72895, 78690, 87474, 102770, 145790, 154155, 218685, 308310, 437370, 626897, 1253794, 1880691, 3134485, 3761382, 6268970, 9403455, 18806910]

約数ペア:

[(1, 18806910), (2, 9403455), (3, 6268970), (5, 3761382), (6, 3134485), (10, 1880691), (15, 1253794), (30, 626897), (43, 437370), (61, 308310), (86, 218685), (122, 154155), (129, 145790), (183, 102770), (215, 87474), (239, 78690), (258, 72895), (305, 61662), (366, 51385), (430, 43737), (478, 39345), (610, 30831), (645, 29158), (717, 26230), (915, 20554), (1195, 15738), (1290, 14579), (1434, 13115), (1830, 10277), (2390, 7869), (2623, 7170), (3585, 5246)]