61218640

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 160

約数和(自身を含む): 174988800

約数和(自身を除く): 113770160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 97, 98, 112, 115, 140, 161, 184, 194, 196, 230, 245, 280, 322, 343, 368, 388, 392, 460, 485, 490, 560, 644, 679, 686, 776, 784, 805, 920, 970, 980, 1127, 1288, 1358, 1372, 1552, 1610, 1715, 1840, 1940, 1960, 2231, 2254, 2576, 2716, 2744, 3220, 3395, 3430, 3880, 3920, 4462, 4508, 4753, 5432, 5488, 5635, 6440, 6790, 6860, 7760, 7889, 8924, 9016, 9506, 10864, 11155, 11270, 12880, 13580, 13720, 15617, 15778, 17848, 18032, 19012, 22310, 22540, 23765, 27160, 27440, 31234, 31556, 33271, 35696, 38024, 39445, 44620, 45080, 47530, 54320, 62468, 63112, 66542, 76048, 78085, 78890, 89240, 90160, 95060, 109319, 124936, 126224, 133084, 156170, 157780, 166355, 178480, 190120, 218638, 249872, 266168, 312340, 315560, 332710, 380240, 437276, 532336, 546595, 624680, 631120, 665420, 765233, 874552, 1093190, 1249360, 1330840, 1530466, 1749104, 2186380, 2661680, 3060932, 3826165, 4372760, 6121864, 7652330, 8745520, 12243728, 15304660, 30609320, 61218640]

約数ペア:

[(1, 61218640), (2, 30609320), (4, 15304660), (5, 12243728), (7, 8745520), (8, 7652330), (10, 6121864), (14, 4372760), (16, 3826165), (20, 3060932), (23, 2661680), (28, 2186380), (35, 1749104), (40, 1530466), (46, 1330840), (49, 1249360), (56, 1093190), (70, 874552), (80, 765233), (92, 665420), (97, 631120), (98, 624680), (112, 546595), (115, 532336), (140, 437276), (161, 380240), (184, 332710), (194, 315560), (196, 312340), (230, 266168), (245, 249872), (280, 218638), (322, 190120), (343, 178480), (368, 166355), (388, 157780), (392, 156170), (460, 133084), (485, 126224), (490, 124936), (560, 109319), (644, 95060), (679, 90160), (686, 89240), (776, 78890), (784, 78085), (805, 76048), (920, 66542), (970, 63112), (980, 62468), (1127, 54320), (1288, 47530), (1358, 45080), (1372, 44620), (1552, 39445), (1610, 38024), (1715, 35696), (1840, 33271), (1940, 31556), (1960, 31234), (2231, 27440), (2254, 27160), (2576, 23765), (2716, 22540), (2744, 22310), (3220, 19012), (3395, 18032), (3430, 17848), (3880, 15778), (3920, 15617), (4462, 13720), (4508, 13580), (4753, 12880), (5432, 11270), (5488, 11155), (5635, 10864), (6440, 9506), (6790, 9016), (6860, 8924), (7760, 7889)]