81576180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{3083}}^1$

素因数の和:3115

約数の個数: 144

約数和(自身を含む): 295323840

約数和(自身を除く): 213747660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3083, 3780, 4410, 5292, 6166, 6615, 8820, 9249, 12332, 13230, 15415, 18498, 21581, 26460, 27747, 30830, 36996, 43162, 46245, 55494, 61660, 64743, 83241, 86324, 92490, 107905, 110988, 129486, 138735, 151067, 166482, 184980, 194229, 215810, 258972, 277470, 302134, 323715, 332964, 388458, 416205, 431620, 453201, 554940, 582687, 604268, 647430, 755335, 776916, 832410, 906402, 971145, 1165374, 1294860, 1359603, 1510670, 1664820, 1812804, 1942290, 2266005, 2330748, 2719206, 2913435, 3021340, 3884580, 4078809, 4532010, 5438412, 5826870, 6798015, 8157618, 9064020, 11653740, 13596030, 16315236, 20394045, 27192060, 40788090, 81576180]

約数ペア:

[(1, 81576180), (2, 40788090), (3, 27192060), (4, 20394045), (5, 16315236), (6, 13596030), (7, 11653740), (9, 9064020), (10, 8157618), (12, 6798015), (14, 5826870), (15, 5438412), (18, 4532010), (20, 4078809), (21, 3884580), (27, 3021340), (28, 2913435), (30, 2719206), (35, 2330748), (36, 2266005), (42, 1942290), (45, 1812804), (49, 1664820), (54, 1510670), (60, 1359603), (63, 1294860), (70, 1165374), (84, 971145), (90, 906402), (98, 832410), (105, 776916), (108, 755335), (126, 647430), (135, 604268), (140, 582687), (147, 554940), (180, 453201), (189, 431620), (196, 416205), (210, 388458), (245, 332964), (252, 323715), (270, 302134), (294, 277470), (315, 258972), (378, 215810), (420, 194229), (441, 184980), (490, 166482), (540, 151067), (588, 138735), (630, 129486), (735, 110988), (756, 107905), (882, 92490), (945, 86324), (980, 83241), (1260, 64743), (1323, 61660), (1470, 55494), (1764, 46245), (1890, 43162), (2205, 36996), (2646, 30830), (2940, 27747), (3083, 26460), (3780, 21581), (4410, 18498), (5292, 15415), (6166, 13230), (6615, 12332), (8820, 9249)]