80449720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1181}}^1$

素因数の和:1336

約数の個数: 64

約数和(自身を含む): 196590240

約数和(自身を除く): 116140520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 655, 1048, 1181, 1310, 1703, 2362, 2620, 3406, 4724, 5240, 5905, 6812, 8515, 9448, 11810, 13624, 15353, 17030, 23620, 30706, 34060, 47240, 61412, 68120, 76765, 122824, 153530, 154711, 307060, 309422, 614120, 618844, 773555, 1237688, 1547110, 2011243, 3094220, 4022486, 6188440, 8044972, 10056215, 16089944, 20112430, 40224860, 80449720]

約数ペア:

[(1, 80449720), (2, 40224860), (4, 20112430), (5, 16089944), (8, 10056215), (10, 8044972), (13, 6188440), (20, 4022486), (26, 3094220), (40, 2011243), (52, 1547110), (65, 1237688), (104, 773555), (130, 618844), (131, 614120), (260, 309422), (262, 307060), (520, 154711), (524, 153530), (655, 122824), (1048, 76765), (1181, 68120), (1310, 61412), (1703, 47240), (2362, 34060), (2620, 30706), (3406, 23620), (4724, 17030), (5240, 15353), (5905, 13624), (6812, 11810), (8515, 9448)]