209722760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21227}}^1$

素因数の和:21270

約数の個数: 64

約数和(自身を含む): 534945600

約数和(自身を除く): 325222840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 21227, 42454, 84908, 106135, 169816, 212270, 275951, 403313, 424540, 551902, 806626, 849080, 1103804, 1379755, 1613252, 2016565, 2207608, 2759510, 3226504, 4033130, 5243069, 5519020, 8066260, 10486138, 11038040, 16132520, 20972276, 26215345, 41944552, 52430690, 104861380, 209722760]

約数ペア:

[(1, 209722760), (2, 104861380), (4, 52430690), (5, 41944552), (8, 26215345), (10, 20972276), (13, 16132520), (19, 11038040), (20, 10486138), (26, 8066260), (38, 5519020), (40, 5243069), (52, 4033130), (65, 3226504), (76, 2759510), (95, 2207608), (104, 2016565), (130, 1613252), (152, 1379755), (190, 1103804), (247, 849080), (260, 806626), (380, 551902), (494, 424540), (520, 403313), (760, 275951), (988, 212270), (1235, 169816), (1976, 106135), (2470, 84908), (4940, 42454), (9880, 21227)]