278727240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12421}}^1$

素因数の和:12463

約数の個数: 128

約数和(自身を含む): 965934720

約数和(自身を除く): 687207480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 1020, 1122, 1320, 1496, 1870, 2040, 2244, 2805, 3740, 4488, 5610, 7480, 11220, 12421, 22440, 24842, 37263, 49684, 62105, 74526, 99368, 124210, 136631, 149052, 186315, 211157, 248420, 273262, 298104, 372630, 409893, 422314, 496840, 546524, 633471, 683155, 745260, 819786, 844628, 1055785, 1093048, 1266942, 1366310, 1490520, 1639572, 1689256, 2049465, 2111570, 2322727, 2533884, 2732620, 3167355, 3279144, 4098930, 4223140, 4645454, 5067768, 5465240, 6334710, 6968181, 8197860, 8446280, 9290908, 11613635, 12669420, 13936362, 16395720, 18581816, 23227270, 25338840, 27872724, 34840905, 46454540, 55745448, 69681810, 92909080, 139363620, 278727240]

約数ペア:

[(1, 278727240), (2, 139363620), (3, 92909080), (4, 69681810), (5, 55745448), (6, 46454540), (8, 34840905), (10, 27872724), (11, 25338840), (12, 23227270), (15, 18581816), (17, 16395720), (20, 13936362), (22, 12669420), (24, 11613635), (30, 9290908), (33, 8446280), (34, 8197860), (40, 6968181), (44, 6334710), (51, 5465240), (55, 5067768), (60, 4645454), (66, 4223140), (68, 4098930), (85, 3279144), (88, 3167355), (102, 2732620), (110, 2533884), (120, 2322727), (132, 2111570), (136, 2049465), (165, 1689256), (170, 1639572), (187, 1490520), (204, 1366310), (220, 1266942), (255, 1093048), (264, 1055785), (330, 844628), (340, 819786), (374, 745260), (408, 683155), (440, 633471), (510, 546524), (561, 496840), (660, 422314), (680, 409893), (748, 372630), (935, 298104), (1020, 273262), (1122, 248420), (1320, 211157), (1496, 186315), (1870, 149052), (2040, 136631), (2244, 124210), (2805, 99368), (3740, 74526), (4488, 62105), (5610, 49684), (7480, 37263), (11220, 24842), (12421, 22440)]