80211825

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 156686400

約数和(自身を除く): 76474575

約数列:

[1, 3, 5, 9, 15, 19, 25, 29, 45, 57, 75, 87, 95, 145, 171, 225, 261, 285, 435, 475, 551, 647, 725, 855, 1305, 1425, 1653, 1941, 2175, 2755, 3235, 4275, 4959, 5823, 6525, 8265, 9705, 12293, 13775, 16175, 18763, 24795, 29115, 36879, 41325, 48525, 56289, 61465, 93815, 110637, 123975, 145575, 168867, 184395, 281445, 307325, 356497, 469075, 553185, 844335, 921975, 1069491, 1407225, 1782485, 2765925, 3208473, 4221675, 5347455, 8912425, 16042365, 26737275, 80211825]

約数ペア:

[(1, 80211825), (3, 26737275), (5, 16042365), (9, 8912425), (15, 5347455), (19, 4221675), (25, 3208473), (29, 2765925), (45, 1782485), (57, 1407225), (75, 1069491), (87, 921975), (95, 844335), (145, 553185), (171, 469075), (225, 356497), (261, 307325), (285, 281445), (435, 184395), (475, 168867), (551, 145575), (647, 123975), (725, 110637), (855, 93815), (1305, 61465), (1425, 56289), (1653, 48525), (1941, 41325), (2175, 36879), (2755, 29115), (3235, 24795), (4275, 18763), (4959, 16175), (5823, 13775), (6525, 12293), (8265, 9705)]