18749940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28409}}^1$

素因数の和:28432

約数の個数: 48

約数和(自身を含む): 57274560

約数和(自身を除く): 38524620

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 28409, 56818, 85227, 113636, 142045, 170454, 284090, 312499, 340908, 426135, 568180, 624998, 852270, 937497, 1249996, 1562495, 1704540, 1874994, 3124990, 3749988, 4687485, 6249980, 9374970, 18749940]

約数ペア:

[(1, 18749940), (2, 9374970), (3, 6249980), (4, 4687485), (5, 3749988), (6, 3124990), (10, 1874994), (11, 1704540), (12, 1562495), (15, 1249996), (20, 937497), (22, 852270), (30, 624998), (33, 568180), (44, 426135), (55, 340908), (60, 312499), (66, 284090), (110, 170454), (132, 142045), (165, 113636), (220, 85227), (330, 56818), (660, 28409)]