12740260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2620

約数の個数: 48

約数和(自身を含む): 30340800

約数和(自身を除く): 17600540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 2579, 4940, 5158, 10316, 12895, 25790, 33527, 49001, 51580, 67054, 98002, 134108, 167635, 196004, 245005, 335270, 490010, 637013, 670540, 980020, 1274026, 2548052, 3185065, 6370130, 12740260]

約数ペア:

[(1, 12740260), (2, 6370130), (4, 3185065), (5, 2548052), (10, 1274026), (13, 980020), (19, 670540), (20, 637013), (26, 490010), (38, 335270), (52, 245005), (65, 196004), (76, 167635), (95, 134108), (130, 98002), (190, 67054), (247, 51580), (260, 49001), (380, 33527), (494, 25790), (988, 12895), (1235, 10316), (2470, 5158), (2579, 4940)]