220740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 667968

約数和(自身を除く): 447228

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, 283, 390, 566, 780, 849, 1132, 1415, 1698, 2830, 3396, 3679, 4245, 5660, 7358, 8490, 11037, 14716, 16980, 18395, 22074, 36790, 44148, 55185, 73580, 110370, 220740]

約数ペア:

[(1, 220740), (2, 110370), (3, 73580), (4, 55185), (5, 44148), (6, 36790), (10, 22074), (12, 18395), (13, 16980), (15, 14716), (20, 11037), (26, 8490), (30, 7358), (39, 5660), (52, 4245), (60, 3679), (65, 3396), (78, 2830), (130, 1698), (156, 1415), (195, 1132), (260, 849), (283, 780), (390, 566)]