18713860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:98

約数の個数: 96

約数和(自身を含む): 46730880

約数和(自身を除く): 28017020

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 37, 38, 44, 55, 74, 76, 95, 110, 121, 148, 185, 190, 209, 220, 242, 370, 380, 407, 418, 484, 605, 703, 740, 814, 836, 1045, 1210, 1331, 1406, 1628, 2035, 2090, 2299, 2420, 2662, 2812, 3515, 4070, 4180, 4477, 4598, 5324, 6655, 7030, 7733, 8140, 8954, 9196, 11495, 13310, 14060, 15466, 17908, 22385, 22990, 25289, 26620, 30932, 38665, 44770, 45980, 49247, 50578, 77330, 85063, 89540, 98494, 101156, 126445, 154660, 170126, 196988, 246235, 252890, 340252, 425315, 492470, 505780, 850630, 935693, 984940, 1701260, 1871386, 3742772, 4678465, 9356930, 18713860]

約数ペア:

[(1, 18713860), (2, 9356930), (4, 4678465), (5, 3742772), (10, 1871386), (11, 1701260), (19, 984940), (20, 935693), (22, 850630), (37, 505780), (38, 492470), (44, 425315), (55, 340252), (74, 252890), (76, 246235), (95, 196988), (110, 170126), (121, 154660), (148, 126445), (185, 101156), (190, 98494), (209, 89540), (220, 85063), (242, 77330), (370, 50578), (380, 49247), (407, 45980), (418, 44770), (484, 38665), (605, 30932), (703, 26620), (740, 25289), (814, 22990), (836, 22385), (1045, 17908), (1210, 15466), (1331, 14060), (1406, 13310), (1628, 11495), (2035, 9196), (2090, 8954), (2299, 8140), (2420, 7733), (2662, 7030), (2812, 6655), (3515, 5324), (4070, 4598), (4180, 4477)]