128721567308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:1131

約数の個数: 96

約数和(自身を含む): 243856267200

約数和(自身を除く): 115134699892

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 137, 244, 274, 389, 521, 548, 778, 1042, 1159, 1556, 2084, 2318, 2603, 4636, 5206, 7391, 8357, 9899, 10412, 14782, 16714, 19798, 23729, 29564, 31781, 33428, 39596, 47458, 53293, 63562, 71377, 94916, 106586, 127124, 142754, 158783, 202669, 213172, 285508, 317566, 405338, 450851, 603839, 635132, 810676, 901702, 1012567, 1207678, 1356163, 1803404, 2025134, 2415356, 2712326, 3250873, 3850711, 4050268, 4353997, 5424652, 6501746, 7701422, 8707994, 12362809, 13003492, 15402844, 17415988, 24725618, 27765653, 49451236, 55531306, 61766587, 82725943, 111062612, 123533174, 165451886, 234893371, 247066348, 330903772, 469786742, 527547407, 939573484, 1055094814, 1693704833, 2110189628, 3387409666, 6774819332, 32180391827, 64360783654, 128721567308]

約数ペア:

[(1, 128721567308), (2, 64360783654), (4, 32180391827), (19, 6774819332), (38, 3387409666), (61, 2110189628), (76, 1693704833), (122, 1055094814), (137, 939573484), (244, 527547407), (274, 469786742), (389, 330903772), (521, 247066348), (548, 234893371), (778, 165451886), (1042, 123533174), (1159, 111062612), (1556, 82725943), (2084, 61766587), (2318, 55531306), (2603, 49451236), (4636, 27765653), (5206, 24725618), (7391, 17415988), (8357, 15402844), (9899, 13003492), (10412, 12362809), (14782, 8707994), (16714, 7701422), (19798, 6501746), (23729, 5424652), (29564, 4353997), (31781, 4050268), (33428, 3850711), (39596, 3250873), (47458, 2712326), (53293, 2415356), (63562, 2025134), (71377, 1803404), (94916, 1356163), (106586, 1207678), (127124, 1012567), (142754, 901702), (158783, 810676), (202669, 635132), (213172, 603839), (285508, 450851), (317566, 405338)]