399033840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1662641}}^1$

素因数の和:1662657

約数の個数: 40

約数和(自身を含む): 1237005648

約数和(自身を除く): 837971808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1662641, 3325282, 4987923, 6650564, 8313205, 9975846, 13301128, 16626410, 19951692, 24939615, 26602256, 33252820, 39903384, 49879230, 66505640, 79806768, 99758460, 133011280, 199516920, 399033840]

約数ペア:

[(1, 399033840), (2, 199516920), (3, 133011280), (4, 99758460), (5, 79806768), (6, 66505640), (8, 49879230), (10, 39903384), (12, 33252820), (15, 26602256), (16, 24939615), (20, 19951692), (24, 16626410), (30, 13301128), (40, 9975846), (48, 8313205), (60, 6650564), (80, 4987923), (120, 3325282), (240, 1662641)]