31972005

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 64576512

約数和(自身を除く): 32604507

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 41, 43, 45, 65, 93, 117, 123, 129, 155, 195, 205, 215, 279, 369, 387, 403, 465, 533, 559, 585, 615, 645, 1209, 1271, 1333, 1395, 1599, 1677, 1763, 1845, 1935, 2015, 2665, 2795, 3627, 3813, 3999, 4797, 5031, 5289, 6045, 6355, 6665, 7995, 8385, 8815, 11439, 11997, 15867, 16523, 17329, 18135, 19065, 19995, 22919, 23985, 25155, 26445, 49569, 51987, 54653, 57195, 59985, 68757, 79335, 82615, 86645, 114595, 148707, 155961, 163959, 206271, 247845, 259935, 273265, 343785, 491877, 710489, 743535, 779805, 819795, 1031355, 2131467, 2459385, 3552445, 6394401, 10657335, 31972005]

約数ペア:

[(1, 31972005), (3, 10657335), (5, 6394401), (9, 3552445), (13, 2459385), (15, 2131467), (31, 1031355), (39, 819795), (41, 779805), (43, 743535), (45, 710489), (65, 491877), (93, 343785), (117, 273265), (123, 259935), (129, 247845), (155, 206271), (195, 163959), (205, 155961), (215, 148707), (279, 114595), (369, 86645), (387, 82615), (403, 79335), (465, 68757), (533, 59985), (559, 57195), (585, 54653), (615, 51987), (645, 49569), (1209, 26445), (1271, 25155), (1333, 23985), (1395, 22919), (1599, 19995), (1677, 19065), (1763, 18135), (1845, 17329), (1935, 16523), (2015, 15867), (2665, 11997), (2795, 11439), (3627, 8815), (3813, 8385), (3999, 7995), (4797, 6665), (5031, 6355), (5289, 6045)]