80214520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 187881120

約数和(自身を除く): 107666600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 83, 148, 166, 185, 296, 332, 370, 415, 653, 664, 740, 830, 1306, 1480, 1660, 2612, 3071, 3265, 3320, 5224, 6142, 6530, 12284, 13060, 15355, 24161, 24568, 26120, 30710, 48322, 54199, 61420, 96644, 108398, 120805, 122840, 193288, 216796, 241610, 270995, 433592, 483220, 541990, 966440, 1083980, 2005363, 2167960, 4010726, 8021452, 10026815, 16042904, 20053630, 40107260, 80214520]

約数ペア:

[(1, 80214520), (2, 40107260), (4, 20053630), (5, 16042904), (8, 10026815), (10, 8021452), (20, 4010726), (37, 2167960), (40, 2005363), (74, 1083980), (83, 966440), (148, 541990), (166, 483220), (185, 433592), (296, 270995), (332, 241610), (370, 216796), (415, 193288), (653, 122840), (664, 120805), (740, 108398), (830, 96644), (1306, 61420), (1480, 54199), (1660, 48322), (2612, 30710), (3071, 26120), (3265, 24568), (3320, 24161), (5224, 15355), (6142, 13060), (6530, 12284)]