81817320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 266716800

約数和(自身を除く): 184899480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 179, 195, 260, 293, 312, 358, 390, 520, 537, 586, 716, 780, 879, 895, 1074, 1172, 1432, 1465, 1560, 1758, 1790, 2148, 2327, 2344, 2685, 2930, 3516, 3580, 3809, 4296, 4395, 4654, 5370, 5860, 6981, 7032, 7160, 7618, 8790, 9308, 10740, 11427, 11635, 11720, 13962, 15236, 17580, 18616, 19045, 21480, 22854, 23270, 27924, 30472, 34905, 35160, 38090, 45708, 46540, 52447, 55848, 57135, 69810, 76180, 91416, 93080, 104894, 114270, 139620, 152360, 157341, 209788, 228540, 262235, 279240, 314682, 419576, 457080, 524470, 629364, 681811, 786705, 1048940, 1258728, 1363622, 1573410, 2045433, 2097880, 2727244, 3146820, 3409055, 4090866, 5454488, 6293640, 6818110, 8181732, 10227165, 13636220, 16363464, 20454330, 27272440, 40908660, 81817320]

約数ペア:

[(1, 81817320), (2, 40908660), (3, 27272440), (4, 20454330), (5, 16363464), (6, 13636220), (8, 10227165), (10, 8181732), (12, 6818110), (13, 6293640), (15, 5454488), (20, 4090866), (24, 3409055), (26, 3146820), (30, 2727244), (39, 2097880), (40, 2045433), (52, 1573410), (60, 1363622), (65, 1258728), (78, 1048940), (104, 786705), (120, 681811), (130, 629364), (156, 524470), (179, 457080), (195, 419576), (260, 314682), (293, 279240), (312, 262235), (358, 228540), (390, 209788), (520, 157341), (537, 152360), (586, 139620), (716, 114270), (780, 104894), (879, 93080), (895, 91416), (1074, 76180), (1172, 69810), (1432, 57135), (1465, 55848), (1560, 52447), (1758, 46540), (1790, 45708), (2148, 38090), (2327, 35160), (2344, 34905), (2685, 30472), (2930, 27924), (3516, 23270), (3580, 22854), (3809, 21480), (4296, 19045), (4395, 18616), (4654, 17580), (5370, 15236), (5860, 13962), (6981, 11720), (7032, 11635), (7160, 11427), (7618, 10740), (8790, 9308)]