231390120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6449}}^1$

素因数の和:6499

約数の個数: 128

約数和(自身を含む): 780192000

約数和(自身を除く): 548801880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 2392, 2760, 2990, 3588, 4485, 5980, 6449, 7176, 8970, 11960, 12898, 17940, 19347, 25796, 32245, 35880, 38694, 51592, 64490, 77388, 83837, 96735, 128980, 148327, 154776, 167674, 193470, 251511, 257960, 296654, 335348, 386940, 419185, 444981, 503022, 593308, 670696, 741635, 773880, 838370, 889962, 1006044, 1186616, 1257555, 1483270, 1676740, 1779924, 1928251, 2012088, 2224905, 2515110, 2966540, 3353480, 3559848, 3856502, 4449810, 5030220, 5784753, 5933080, 7713004, 8899620, 9641255, 10060440, 11569506, 15426008, 17799240, 19282510, 23139012, 28923765, 38565020, 46278024, 57847530, 77130040, 115695060, 231390120]

約数ペア:

[(1, 231390120), (2, 115695060), (3, 77130040), (4, 57847530), (5, 46278024), (6, 38565020), (8, 28923765), (10, 23139012), (12, 19282510), (13, 17799240), (15, 15426008), (20, 11569506), (23, 10060440), (24, 9641255), (26, 8899620), (30, 7713004), (39, 5933080), (40, 5784753), (46, 5030220), (52, 4449810), (60, 3856502), (65, 3559848), (69, 3353480), (78, 2966540), (92, 2515110), (104, 2224905), (115, 2012088), (120, 1928251), (130, 1779924), (138, 1676740), (156, 1483270), (184, 1257555), (195, 1186616), (230, 1006044), (260, 889962), (276, 838370), (299, 773880), (312, 741635), (345, 670696), (390, 593308), (460, 503022), (520, 444981), (552, 419185), (598, 386940), (690, 335348), (780, 296654), (897, 257960), (920, 251511), (1196, 193470), (1380, 167674), (1495, 154776), (1560, 148327), (1794, 128980), (2392, 96735), (2760, 83837), (2990, 77388), (3588, 64490), (4485, 51592), (5980, 38694), (6449, 35880), (7176, 32245), (8970, 25796), (11960, 19347), (12898, 17940)]