209055280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16231}}^1$

素因数の和:16274

約数の個数: 80

約数和(自身を含む): 579677184

約数和(自身を除く): 370621904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 16231, 32462, 64924, 81155, 113617, 129848, 162310, 227234, 259696, 324620, 373313, 454468, 568085, 649240, 746626, 908936, 1136170, 1298480, 1493252, 1817872, 1866565, 2272340, 2613191, 2986504, 3733130, 4544680, 5226382, 5973008, 7466260, 9089360, 10452764, 13065955, 14932520, 20905528, 26131910, 29865040, 41811056, 52263820, 104527640, 209055280]

約数ペア:

[(1, 209055280), (2, 104527640), (4, 52263820), (5, 41811056), (7, 29865040), (8, 26131910), (10, 20905528), (14, 14932520), (16, 13065955), (20, 10452764), (23, 9089360), (28, 7466260), (35, 5973008), (40, 5226382), (46, 4544680), (56, 3733130), (70, 2986504), (80, 2613191), (92, 2272340), (112, 1866565), (115, 1817872), (140, 1493252), (161, 1298480), (184, 1136170), (230, 908936), (280, 746626), (322, 649240), (368, 568085), (460, 454468), (560, 373313), (644, 324620), (805, 259696), (920, 227234), (1288, 162310), (1610, 129848), (1840, 113617), (2576, 81155), (3220, 64924), (6440, 32462), (12880, 16231)]