15906540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20393}}^1$

素因数の和:20418

約数の個数: 48

約数和(自身を含む): 47966688

約数和(自身を除く): 32060148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20393, 40786, 61179, 81572, 101965, 122358, 203930, 244716, 265109, 305895, 407860, 530218, 611790, 795327, 1060436, 1223580, 1325545, 1590654, 2651090, 3181308, 3976635, 5302180, 7953270, 15906540]

約数ペア:

[(1, 15906540), (2, 7953270), (3, 5302180), (4, 3976635), (5, 3181308), (6, 2651090), (10, 1590654), (12, 1325545), (13, 1223580), (15, 1060436), (20, 795327), (26, 611790), (30, 530218), (39, 407860), (52, 305895), (60, 265109), (65, 244716), (78, 203930), (130, 122358), (156, 101965), (195, 81572), (260, 61179), (390, 40786), (780, 20393)]