20176520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 58544640

約数和(自身を除く): 38368120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 52, 56, 65, 70, 91, 92, 104, 115, 130, 140, 161, 182, 184, 230, 241, 260, 280, 299, 322, 364, 455, 460, 482, 520, 598, 644, 728, 805, 910, 920, 964, 1196, 1205, 1288, 1495, 1610, 1687, 1820, 1928, 2093, 2392, 2410, 2990, 3133, 3220, 3374, 3640, 4186, 4820, 5543, 5980, 6266, 6440, 6748, 8372, 8435, 9640, 10465, 11086, 11960, 12532, 13496, 15665, 16744, 16870, 20930, 21931, 22172, 25064, 27715, 31330, 33740, 38801, 41860, 43862, 44344, 55430, 62660, 67480, 72059, 77602, 83720, 87724, 109655, 110860, 125320, 144118, 155204, 175448, 194005, 219310, 221720, 288236, 310408, 360295, 388010, 438620, 504413, 576472, 720590, 776020, 877240, 1008826, 1441180, 1552040, 2017652, 2522065, 2882360, 4035304, 5044130, 10088260, 20176520]

約数ペア:

[(1, 20176520), (2, 10088260), (4, 5044130), (5, 4035304), (7, 2882360), (8, 2522065), (10, 2017652), (13, 1552040), (14, 1441180), (20, 1008826), (23, 877240), (26, 776020), (28, 720590), (35, 576472), (40, 504413), (46, 438620), (52, 388010), (56, 360295), (65, 310408), (70, 288236), (91, 221720), (92, 219310), (104, 194005), (115, 175448), (130, 155204), (140, 144118), (161, 125320), (182, 110860), (184, 109655), (230, 87724), (241, 83720), (260, 77602), (280, 72059), (299, 67480), (322, 62660), (364, 55430), (455, 44344), (460, 43862), (482, 41860), (520, 38801), (598, 33740), (644, 31330), (728, 27715), (805, 25064), (910, 22172), (920, 21931), (964, 20930), (1196, 16870), (1205, 16744), (1288, 15665), (1495, 13496), (1610, 12532), (1687, 11960), (1820, 11086), (1928, 10465), (2093, 9640), (2392, 8435), (2410, 8372), (2990, 6748), (3133, 6440), (3220, 6266), (3374, 5980), (3640, 5543), (4186, 4820)]