80640378

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{541}}^1$

素因数の和:589

約数の個数: 108

約数和(自身を含む): 220490478

約数和(自身を除く): 139850100

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 169, 182, 234, 273, 294, 338, 441, 507, 541, 546, 637, 819, 882, 1014, 1082, 1183, 1274, 1521, 1623, 1638, 1911, 2366, 3042, 3246, 3549, 3787, 3822, 4869, 5733, 7033, 7098, 7574, 8281, 9738, 10647, 11361, 11466, 14066, 16562, 21099, 21294, 22722, 24843, 26509, 34083, 42198, 49231, 49686, 53018, 63297, 68166, 74529, 79527, 91429, 98462, 126594, 147693, 149058, 159054, 182858, 238581, 274287, 295386, 344617, 443079, 477162, 548574, 640003, 689234, 822861, 886158, 1033851, 1280006, 1645722, 1920009, 2067702, 3101553, 3840018, 4480021, 5760027, 6203106, 8960042, 11520054, 13440063, 26880126, 40320189, 80640378]

約数ペア:

[(1, 80640378), (2, 40320189), (3, 26880126), (6, 13440063), (7, 11520054), (9, 8960042), (13, 6203106), (14, 5760027), (18, 4480021), (21, 3840018), (26, 3101553), (39, 2067702), (42, 1920009), (49, 1645722), (63, 1280006), (78, 1033851), (91, 886158), (98, 822861), (117, 689234), (126, 640003), (147, 548574), (169, 477162), (182, 443079), (234, 344617), (273, 295386), (294, 274287), (338, 238581), (441, 182858), (507, 159054), (541, 149058), (546, 147693), (637, 126594), (819, 98462), (882, 91429), (1014, 79527), (1082, 74529), (1183, 68166), (1274, 63297), (1521, 53018), (1623, 49686), (1638, 49231), (1911, 42198), (2366, 34083), (3042, 26509), (3246, 24843), (3549, 22722), (3787, 21294), (3822, 21099), (4869, 16562), (5733, 14066), (7033, 11466), (7098, 11361), (7574, 10647), (8281, 9738)]