26780380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2969}}^1$

素因数の和:3030

約数の個数: 48

約数和(自身を含む): 62868960

約数和(自身を除く): 36088580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 2969, 4510, 5938, 9020, 11876, 14845, 29690, 32659, 59380, 65318, 121729, 130636, 163295, 243458, 326590, 486916, 608645, 653180, 1217290, 1339019, 2434580, 2678038, 5356076, 6695095, 13390190, 26780380]

約数ペア:

[(1, 26780380), (2, 13390190), (4, 6695095), (5, 5356076), (10, 2678038), (11, 2434580), (20, 1339019), (22, 1217290), (41, 653180), (44, 608645), (55, 486916), (82, 326590), (110, 243458), (164, 163295), (205, 130636), (220, 121729), (410, 65318), (451, 59380), (820, 32659), (902, 29690), (1804, 14845), (2255, 11876), (2969, 9020), (4510, 5938)]