81805360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:711

約数の個数: 160

約数和(自身を含む): 248234112

約数和(自身を除く): 166428752

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 80, 85, 91, 104, 112, 119, 130, 136, 140, 170, 182, 208, 221, 238, 260, 272, 280, 340, 364, 442, 455, 476, 520, 560, 595, 661, 680, 728, 884, 910, 952, 1040, 1105, 1190, 1322, 1360, 1456, 1547, 1768, 1820, 1904, 2210, 2380, 2644, 3094, 3305, 3536, 3640, 4420, 4627, 4760, 5288, 6188, 6610, 7280, 7735, 8593, 8840, 9254, 9520, 10576, 11237, 12376, 13220, 15470, 17186, 17680, 18508, 22474, 23135, 24752, 26440, 30940, 34372, 37016, 42965, 44948, 46270, 52880, 56185, 60151, 61880, 68744, 74032, 78659, 85930, 89896, 92540, 112370, 120302, 123760, 137488, 146081, 157318, 171860, 179792, 185080, 224740, 240604, 292162, 300755, 314636, 343720, 370160, 393295, 449480, 481208, 584324, 601510, 629272, 687440, 730405, 786590, 898960, 962416, 1022567, 1168648, 1203020, 1258544, 1460810, 1573180, 2045134, 2337296, 2406040, 2921620, 3146360, 4090268, 4812080, 5112835, 5843240, 6292720, 8180536, 10225670, 11686480, 16361072, 20451340, 40902680, 81805360]

約数ペア:

[(1, 81805360), (2, 40902680), (4, 20451340), (5, 16361072), (7, 11686480), (8, 10225670), (10, 8180536), (13, 6292720), (14, 5843240), (16, 5112835), (17, 4812080), (20, 4090268), (26, 3146360), (28, 2921620), (34, 2406040), (35, 2337296), (40, 2045134), (52, 1573180), (56, 1460810), (65, 1258544), (68, 1203020), (70, 1168648), (80, 1022567), (85, 962416), (91, 898960), (104, 786590), (112, 730405), (119, 687440), (130, 629272), (136, 601510), (140, 584324), (170, 481208), (182, 449480), (208, 393295), (221, 370160), (238, 343720), (260, 314636), (272, 300755), (280, 292162), (340, 240604), (364, 224740), (442, 185080), (455, 179792), (476, 171860), (520, 157318), (560, 146081), (595, 137488), (661, 123760), (680, 120302), (728, 112370), (884, 92540), (910, 89896), (952, 85930), (1040, 78659), (1105, 74032), (1190, 68744), (1322, 61880), (1360, 60151), (1456, 56185), (1547, 52880), (1768, 46270), (1820, 44948), (1904, 42965), (2210, 37016), (2380, 34372), (2644, 30940), (3094, 26440), (3305, 24752), (3536, 23135), (3640, 22474), (4420, 18508), (4627, 17680), (4760, 17186), (5288, 15470), (6188, 13220), (6610, 12376), (7280, 11237), (7735, 10576), (8593, 9520), (8840, 9254)]