28398180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3613}}^1$

素因数の和:3756

約数の個数: 48

約数和(自身を含む): 80144064

約数和(自身を除く): 51745884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3613, 3930, 7226, 7860, 10839, 14452, 18065, 21678, 36130, 43356, 54195, 72260, 108390, 216780, 473303, 946606, 1419909, 1893212, 2366515, 2839818, 4733030, 5679636, 7099545, 9466060, 14199090, 28398180]

約数ペア:

[(1, 28398180), (2, 14199090), (3, 9466060), (4, 7099545), (5, 5679636), (6, 4733030), (10, 2839818), (12, 2366515), (15, 1893212), (20, 1419909), (30, 946606), (60, 473303), (131, 216780), (262, 108390), (393, 72260), (524, 54195), (655, 43356), (786, 36130), (1310, 21678), (1572, 18065), (1965, 14452), (2620, 10839), (3613, 7860), (3930, 7226)]