2561390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 5624640

約数和(自身を除く): 3063250

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 61, 65, 85, 95, 122, 130, 170, 190, 221, 247, 305, 323, 442, 494, 610, 646, 793, 1037, 1105, 1159, 1235, 1586, 1615, 2074, 2210, 2318, 2470, 3230, 3965, 4199, 5185, 5795, 7930, 8398, 10370, 11590, 13481, 15067, 19703, 20995, 26962, 30134, 39406, 41990, 67405, 75335, 98515, 134810, 150670, 197030, 256139, 512278, 1280695, 2561390]

約数ペア:

[(1, 2561390), (2, 1280695), (5, 512278), (10, 256139), (13, 197030), (17, 150670), (19, 134810), (26, 98515), (34, 75335), (38, 67405), (61, 41990), (65, 39406), (85, 30134), (95, 26962), (122, 20995), (130, 19703), (170, 15067), (190, 13481), (221, 11590), (247, 10370), (305, 8398), (323, 7930), (442, 5795), (494, 5185), (610, 4199), (646, 3965), (793, 3230), (1037, 2470), (1105, 2318), (1159, 2210), (1235, 2074), (1586, 1615)]