20460720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:683

約数の個数: 160

約数和(自身を含む): 76423680

約数和(自身を除く): 55962960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 641, 665, 760, 798, 840, 912, 1064, 1140, 1282, 1330, 1520, 1596, 1680, 1923, 1995, 2128, 2280, 2564, 2660, 3192, 3205, 3846, 3990, 4487, 4560, 5128, 5320, 6384, 6410, 7692, 7980, 8974, 9615, 10256, 10640, 12179, 12820, 13461, 15384, 15960, 17948, 19230, 22435, 24358, 25640, 26922, 30768, 31920, 35896, 36537, 38460, 44870, 48716, 51280, 53844, 60895, 67305, 71792, 73074, 76920, 85253, 89740, 97432, 107688, 121790, 134610, 146148, 153840, 170506, 179480, 182685, 194864, 215376, 243580, 255759, 269220, 292296, 341012, 358960, 365370, 426265, 487160, 511518, 538440, 584592, 682024, 730740, 852530, 974320, 1023036, 1076880, 1278795, 1364048, 1461480, 1705060, 2046072, 2557590, 2922960, 3410120, 4092144, 5115180, 6820240, 10230360, 20460720]

約数ペア:

[(1, 20460720), (2, 10230360), (3, 6820240), (4, 5115180), (5, 4092144), (6, 3410120), (7, 2922960), (8, 2557590), (10, 2046072), (12, 1705060), (14, 1461480), (15, 1364048), (16, 1278795), (19, 1076880), (20, 1023036), (21, 974320), (24, 852530), (28, 730740), (30, 682024), (35, 584592), (38, 538440), (40, 511518), (42, 487160), (48, 426265), (56, 365370), (57, 358960), (60, 341012), (70, 292296), (76, 269220), (80, 255759), (84, 243580), (95, 215376), (105, 194864), (112, 182685), (114, 179480), (120, 170506), (133, 153840), (140, 146148), (152, 134610), (168, 121790), (190, 107688), (210, 97432), (228, 89740), (240, 85253), (266, 76920), (280, 73074), (285, 71792), (304, 67305), (336, 60895), (380, 53844), (399, 51280), (420, 48716), (456, 44870), (532, 38460), (560, 36537), (570, 35896), (641, 31920), (665, 30768), (760, 26922), (798, 25640), (840, 24358), (912, 22435), (1064, 19230), (1140, 17948), (1282, 15960), (1330, 15384), (1520, 13461), (1596, 12820), (1680, 12179), (1923, 10640), (1995, 10256), (2128, 9615), (2280, 8974), (2564, 7980), (2660, 7692), (3192, 6410), (3205, 6384), (3846, 5320), (3990, 5128), (4487, 4560)]