7021820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 16087680

約数和(自身を除く): 9065860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 239, 260, 452, 478, 565, 956, 1130, 1195, 1469, 2260, 2390, 2938, 3107, 4780, 5876, 6214, 7345, 12428, 14690, 15535, 27007, 29380, 31070, 54014, 62140, 108028, 135035, 270070, 351091, 540140, 702182, 1404364, 1755455, 3510910, 7021820]

約数ペア:

[(1, 7021820), (2, 3510910), (4, 1755455), (5, 1404364), (10, 702182), (13, 540140), (20, 351091), (26, 270070), (52, 135035), (65, 108028), (113, 62140), (130, 54014), (226, 31070), (239, 29380), (260, 27007), (452, 15535), (478, 14690), (565, 12428), (956, 7345), (1130, 6214), (1195, 5876), (1469, 4780), (2260, 3107), (2390, 2938)]