81896080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 235699200

約数和(自身を除く): 153803120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 80, 86, 95, 112, 133, 140, 152, 172, 179, 190, 215, 266, 280, 301, 304, 344, 358, 380, 430, 532, 560, 602, 665, 688, 716, 760, 817, 860, 895, 1064, 1204, 1253, 1330, 1432, 1505, 1520, 1634, 1720, 1790, 2128, 2408, 2506, 2660, 2864, 3010, 3268, 3401, 3440, 3580, 4085, 4816, 5012, 5320, 5719, 6020, 6265, 6536, 6802, 7160, 7697, 8170, 10024, 10640, 11438, 12040, 12530, 13072, 13604, 14320, 15394, 16340, 17005, 20048, 22876, 23807, 24080, 25060, 27208, 28595, 30788, 32680, 34010, 38485, 45752, 47614, 50120, 53879, 54416, 57190, 61576, 65360, 68020, 76970, 91504, 95228, 100240, 107758, 114380, 119035, 123152, 136040, 146243, 153940, 190456, 215516, 228760, 238070, 269395, 272080, 292486, 307880, 380912, 431032, 457520, 476140, 538790, 584972, 615760, 731215, 862064, 952280, 1023701, 1077580, 1169944, 1462430, 1904560, 2047402, 2155160, 2339888, 2924860, 4094804, 4310320, 5118505, 5849720, 8189608, 10237010, 11699440, 16379216, 20474020, 40948040, 81896080]

約数ペア:

[(1, 81896080), (2, 40948040), (4, 20474020), (5, 16379216), (7, 11699440), (8, 10237010), (10, 8189608), (14, 5849720), (16, 5118505), (19, 4310320), (20, 4094804), (28, 2924860), (35, 2339888), (38, 2155160), (40, 2047402), (43, 1904560), (56, 1462430), (70, 1169944), (76, 1077580), (80, 1023701), (86, 952280), (95, 862064), (112, 731215), (133, 615760), (140, 584972), (152, 538790), (172, 476140), (179, 457520), (190, 431032), (215, 380912), (266, 307880), (280, 292486), (301, 272080), (304, 269395), (344, 238070), (358, 228760), (380, 215516), (430, 190456), (532, 153940), (560, 146243), (602, 136040), (665, 123152), (688, 119035), (716, 114380), (760, 107758), (817, 100240), (860, 95228), (895, 91504), (1064, 76970), (1204, 68020), (1253, 65360), (1330, 61576), (1432, 57190), (1505, 54416), (1520, 53879), (1634, 50120), (1720, 47614), (1790, 45752), (2128, 38485), (2408, 34010), (2506, 32680), (2660, 30788), (2864, 28595), (3010, 27208), (3268, 25060), (3401, 24080), (3440, 23807), (3580, 22876), (4085, 20048), (4816, 17005), (5012, 16340), (5320, 15394), (5719, 14320), (6020, 13604), (6265, 13072), (6536, 12530), (6802, 12040), (7160, 11438), (7697, 10640), (8170, 10024)]