438758820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2969}}^1$

素因数の和:3805

約数の個数: 72

約数和(自身を含む): 1332971640

約数和(自身を除く): 894212820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 821, 1642, 2463, 2969, 3284, 4105, 4926, 5938, 7389, 8210, 8907, 9852, 11876, 12315, 14778, 14845, 16420, 17814, 24630, 26721, 29556, 29690, 35628, 36945, 44535, 49260, 53442, 59380, 73890, 89070, 106884, 133605, 147780, 178140, 267210, 534420, 2437549, 4875098, 7312647, 9750196, 12187745, 14625294, 21937941, 24375490, 29250588, 36563235, 43875882, 48750980, 73126470, 87751764, 109689705, 146252940, 219379410, 438758820]

約数ペア:

[(1, 438758820), (2, 219379410), (3, 146252940), (4, 109689705), (5, 87751764), (6, 73126470), (9, 48750980), (10, 43875882), (12, 36563235), (15, 29250588), (18, 24375490), (20, 21937941), (30, 14625294), (36, 12187745), (45, 9750196), (60, 7312647), (90, 4875098), (180, 2437549), (821, 534420), (1642, 267210), (2463, 178140), (2969, 147780), (3284, 133605), (4105, 106884), (4926, 89070), (5938, 73890), (7389, 59380), (8210, 53442), (8907, 49260), (9852, 44535), (11876, 36945), (12315, 35628), (14778, 29690), (14845, 29556), (16420, 26721), (17814, 24630)]