61678940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 141938160

約数和(自身を除く): 80259220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 193, 290, 380, 386, 551, 580, 772, 841, 965, 1102, 1682, 1930, 2204, 2755, 3364, 3667, 3860, 4205, 5510, 5597, 7334, 8410, 11020, 11194, 14668, 15979, 16820, 18335, 22388, 27985, 31958, 36670, 55970, 63916, 73340, 79895, 106343, 111940, 159790, 162313, 212686, 319580, 324626, 425372, 531715, 649252, 811565, 1063430, 1623130, 2126860, 3083947, 3246260, 6167894, 12335788, 15419735, 30839470, 61678940]

約数ペア:

[(1, 61678940), (2, 30839470), (4, 15419735), (5, 12335788), (10, 6167894), (19, 3246260), (20, 3083947), (29, 2126860), (38, 1623130), (58, 1063430), (76, 811565), (95, 649252), (116, 531715), (145, 425372), (190, 324626), (193, 319580), (290, 212686), (380, 162313), (386, 159790), (551, 111940), (580, 106343), (772, 79895), (841, 73340), (965, 63916), (1102, 55970), (1682, 36670), (1930, 31958), (2204, 27985), (2755, 22388), (3364, 18335), (3667, 16820), (3860, 15979), (4205, 14668), (5510, 11194), (5597, 11020), (7334, 8410)]