15654620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1123}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 35689248

約数和(自身を除く): 20034628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1123, 1394, 2246, 2788, 3485, 4492, 5615, 6970, 11230, 13940, 19091, 22460, 38182, 46043, 76364, 92086, 95455, 184172, 190910, 230215, 381820, 460430, 782731, 920860, 1565462, 3130924, 3913655, 7827310, 15654620]

約数ペア:

[(1, 15654620), (2, 7827310), (4, 3913655), (5, 3130924), (10, 1565462), (17, 920860), (20, 782731), (34, 460430), (41, 381820), (68, 230215), (82, 190910), (85, 184172), (164, 95455), (170, 92086), (205, 76364), (340, 46043), (410, 38182), (697, 22460), (820, 19091), (1123, 13940), (1394, 11230), (2246, 6970), (2788, 5615), (3485, 4492)]