81488238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 182552832

約数和(自身を除く): 101064594

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 83, 123, 166, 246, 249, 307, 498, 533, 614, 921, 1066, 1079, 1599, 1842, 2158, 3198, 3237, 3403, 3991, 6474, 6806, 7982, 10209, 11973, 12587, 20418, 23946, 25174, 25481, 37761, 44239, 50962, 75522, 76443, 88478, 132717, 152886, 163631, 265434, 327262, 331253, 490893, 662506, 981786, 993759, 1044721, 1987518, 2089442, 3134163, 6268326, 13581373, 27162746, 40744119, 81488238]

約数ペア:

[(1, 81488238), (2, 40744119), (3, 27162746), (6, 13581373), (13, 6268326), (26, 3134163), (39, 2089442), (41, 1987518), (78, 1044721), (82, 993759), (83, 981786), (123, 662506), (166, 490893), (246, 331253), (249, 327262), (307, 265434), (498, 163631), (533, 152886), (614, 132717), (921, 88478), (1066, 76443), (1079, 75522), (1599, 50962), (1842, 44239), (2158, 37761), (3198, 25481), (3237, 25174), (3403, 23946), (3991, 20418), (6474, 12587), (6806, 11973), (7982, 10209)]