2003048780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1229}}^1\times {\mathrm{4289}}^1$

素因数の和:5546

約数の個数: 48

約数和(自身を含む): 4432428000

約数和(自身を除く): 2429379220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1229, 2458, 4289, 4916, 6145, 8578, 12290, 17156, 21445, 23351, 24580, 42890, 46702, 81491, 85780, 93404, 116755, 162982, 233510, 325964, 407455, 467020, 814910, 1629820, 5271181, 10542362, 21084724, 26355905, 52711810, 100152439, 105423620, 200304878, 400609756, 500762195, 1001524390, 2003048780]

約数ペア:

[(1, 2003048780), (2, 1001524390), (4, 500762195), (5, 400609756), (10, 200304878), (19, 105423620), (20, 100152439), (38, 52711810), (76, 26355905), (95, 21084724), (190, 10542362), (380, 5271181), (1229, 1629820), (2458, 814910), (4289, 467020), (4916, 407455), (6145, 325964), (8578, 233510), (12290, 162982), (17156, 116755), (21445, 93404), (23351, 85780), (24580, 81491), (42890, 46702)]