245455560

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:660

約数の個数: 192

約数和(自身を含む): 917654400

約数和(自身を除く): 672198840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 257, 280, 315, 360, 379, 420, 504, 514, 630, 758, 771, 840, 1028, 1137, 1260, 1285, 1516, 1542, 1799, 1895, 2056, 2274, 2313, 2520, 2570, 2653, 3032, 3084, 3411, 3598, 3790, 3855, 4548, 4626, 5140, 5306, 5397, 5685, 6168, 6822, 7196, 7580, 7710, 7959, 8995, 9096, 9252, 10280, 10612, 10794, 11370, 11565, 13265, 13644, 14392, 15160, 15420, 15918, 16191, 17055, 17990, 18504, 21224, 21588, 22740, 23130, 23877, 26530, 26985, 27288, 30840, 31836, 32382, 34110, 35980, 39795, 43176, 45480, 46260, 47754, 53060, 53970, 63672, 64764, 68220, 71960, 79590, 80955, 92520, 95508, 97403, 106120, 107940, 119385, 129528, 136440, 159180, 161910, 191016, 194806, 215880, 238770, 292209, 318360, 323820, 389612, 477540, 487015, 584418, 647640, 681821, 779224, 876627, 955080, 974030, 1168836, 1363642, 1461045, 1753254, 1948060, 2045463, 2337672, 2727284, 2922090, 3409105, 3506508, 3896120, 4090926, 4383135, 5454568, 5844180, 6136389, 6818210, 7013016, 8181852, 8766270, 10227315, 11688360, 12272778, 13636420, 16363704, 17532540, 20454630, 24545556, 27272840, 30681945, 35065080, 40909260, 49091112, 61363890, 81818520, 122727780, 245455560]

約数ペア:

[(1, 245455560), (2, 122727780), (3, 81818520), (4, 61363890), (5, 49091112), (6, 40909260), (7, 35065080), (8, 30681945), (9, 27272840), (10, 24545556), (12, 20454630), (14, 17532540), (15, 16363704), (18, 13636420), (20, 12272778), (21, 11688360), (24, 10227315), (28, 8766270), (30, 8181852), (35, 7013016), (36, 6818210), (40, 6136389), (42, 5844180), (45, 5454568), (56, 4383135), (60, 4090926), (63, 3896120), (70, 3506508), (72, 3409105), (84, 2922090), (90, 2727284), (105, 2337672), (120, 2045463), (126, 1948060), (140, 1753254), (168, 1461045), (180, 1363642), (210, 1168836), (252, 974030), (257, 955080), (280, 876627), (315, 779224), (360, 681821), (379, 647640), (420, 584418), (504, 487015), (514, 477540), (630, 389612), (758, 323820), (771, 318360), (840, 292209), (1028, 238770), (1137, 215880), (1260, 194806), (1285, 191016), (1516, 161910), (1542, 159180), (1799, 136440), (1895, 129528), (2056, 119385), (2274, 107940), (2313, 106120), (2520, 97403), (2570, 95508), (2653, 92520), (3032, 80955), (3084, 79590), (3411, 71960), (3598, 68220), (3790, 64764), (3855, 63672), (4548, 53970), (4626, 53060), (5140, 47754), (5306, 46260), (5397, 45480), (5685, 43176), (6168, 39795), (6822, 35980), (7196, 34110), (7580, 32382), (7710, 31836), (7959, 30840), (8995, 27288), (9096, 26985), (9252, 26530), (10280, 23877), (10612, 23130), (10794, 22740), (11370, 21588), (11565, 21224), (13265, 18504), (13644, 17990), (14392, 17055), (15160, 16191), (15420, 15918)]