19109680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4507}}^1$

素因数の和:4573

約数の個数: 40

約数和(自身を含む): 45278352

約数和(自身を除く): 26168672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4507, 9014, 18028, 22535, 36056, 45070, 72112, 90140, 180280, 238871, 360560, 477742, 955484, 1194355, 1910968, 2388710, 3821936, 4777420, 9554840, 19109680]

約数ペア:

[(1, 19109680), (2, 9554840), (4, 4777420), (5, 3821936), (8, 2388710), (10, 1910968), (16, 1194355), (20, 955484), (40, 477742), (53, 360560), (80, 238871), (106, 180280), (212, 90140), (265, 72112), (424, 45070), (530, 36056), (848, 22535), (1060, 18028), (2120, 9014), (4240, 4507)]