81478380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1307}}^1$

素因数の和:2358

約数の個数: 48

約数和(自身を含む): 228533760

約数和(自身を除く): 147055380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1039, 1307, 2078, 2614, 3117, 3921, 4156, 5195, 5228, 6234, 6535, 7842, 10390, 12468, 13070, 15585, 15684, 19605, 20780, 26140, 31170, 39210, 62340, 78420, 1357973, 2715946, 4073919, 5431892, 6789865, 8147838, 13579730, 16295676, 20369595, 27159460, 40739190, 81478380]

約数ペア:

[(1, 81478380), (2, 40739190), (3, 27159460), (4, 20369595), (5, 16295676), (6, 13579730), (10, 8147838), (12, 6789865), (15, 5431892), (20, 4073919), (30, 2715946), (60, 1357973), (1039, 78420), (1307, 62340), (2078, 39210), (2614, 31170), (3117, 26140), (3921, 20780), (4156, 19605), (5195, 15684), (5228, 15585), (6234, 13070), (6535, 12468), (7842, 10390)]