20260840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28727960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 503, 530, 760, 1006, 1007, 1060, 2012, 2014, 2120, 2515, 4024, 4028, 5030, 5035, 8056, 9557, 10060, 10070, 19114, 20120, 20140, 26659, 38228, 40280, 47785, 53318, 76456, 95570, 106636, 133295, 191140, 213272, 266590, 382280, 506521, 533180, 1013042, 1066360, 2026084, 2532605, 4052168, 5065210, 10130420, 20260840]

約数ペア:

[(1, 20260840), (2, 10130420), (4, 5065210), (5, 4052168), (8, 2532605), (10, 2026084), (19, 1066360), (20, 1013042), (38, 533180), (40, 506521), (53, 382280), (76, 266590), (95, 213272), (106, 191140), (152, 133295), (190, 106636), (212, 95570), (265, 76456), (380, 53318), (424, 47785), (503, 40280), (530, 38228), (760, 26659), (1006, 20140), (1007, 20120), (1060, 19114), (2012, 10070), (2014, 10060), (2120, 9557), (2515, 8056), (4024, 5035), (4028, 5030)]