27747980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 68160960

約数和(自身を除く): 40412980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 41, 52, 65, 76, 82, 95, 130, 137, 164, 190, 205, 247, 260, 274, 380, 410, 494, 533, 548, 685, 779, 820, 988, 1066, 1235, 1370, 1558, 1781, 2132, 2470, 2603, 2665, 2740, 3116, 3562, 3895, 4940, 5206, 5330, 5617, 7124, 7790, 8905, 10127, 10412, 10660, 11234, 13015, 15580, 17810, 20254, 22468, 26030, 28085, 33839, 35620, 40508, 50635, 52060, 56170, 67678, 73021, 101270, 106723, 112340, 135356, 146042, 169195, 202540, 213446, 292084, 338390, 365105, 426892, 533615, 676780, 730210, 1067230, 1387399, 1460420, 2134460, 2774798, 5549596, 6936995, 13873990, 27747980]

約数ペア:

[(1, 27747980), (2, 13873990), (4, 6936995), (5, 5549596), (10, 2774798), (13, 2134460), (19, 1460420), (20, 1387399), (26, 1067230), (38, 730210), (41, 676780), (52, 533615), (65, 426892), (76, 365105), (82, 338390), (95, 292084), (130, 213446), (137, 202540), (164, 169195), (190, 146042), (205, 135356), (247, 112340), (260, 106723), (274, 101270), (380, 73021), (410, 67678), (494, 56170), (533, 52060), (548, 50635), (685, 40508), (779, 35620), (820, 33839), (988, 28085), (1066, 26030), (1235, 22468), (1370, 20254), (1558, 17810), (1781, 15580), (2132, 13015), (2470, 11234), (2603, 10660), (2665, 10412), (2740, 10127), (3116, 8905), (3562, 7790), (3895, 7124), (4940, 5617), (5206, 5330)]