81203800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 199987200

約数和(自身を除く): 118783400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 127, 139, 184, 200, 230, 254, 278, 460, 508, 556, 575, 635, 695, 920, 1016, 1112, 1150, 1270, 1390, 2300, 2540, 2780, 2921, 3175, 3197, 3475, 4600, 5080, 5560, 5842, 6350, 6394, 6950, 11684, 12700, 12788, 13900, 14605, 15985, 17653, 23368, 25400, 25576, 27800, 29210, 31970, 35306, 58420, 63940, 70612, 73025, 79925, 88265, 116840, 127880, 141224, 146050, 159850, 176530, 292100, 319700, 353060, 406019, 441325, 584200, 639400, 706120, 812038, 882650, 1624076, 1765300, 2030095, 3248152, 3530600, 4060190, 8120380, 10150475, 16240760, 20300950, 40601900, 81203800]

約数ペア:

[(1, 81203800), (2, 40601900), (4, 20300950), (5, 16240760), (8, 10150475), (10, 8120380), (20, 4060190), (23, 3530600), (25, 3248152), (40, 2030095), (46, 1765300), (50, 1624076), (92, 882650), (100, 812038), (115, 706120), (127, 639400), (139, 584200), (184, 441325), (200, 406019), (230, 353060), (254, 319700), (278, 292100), (460, 176530), (508, 159850), (556, 146050), (575, 141224), (635, 127880), (695, 116840), (920, 88265), (1016, 79925), (1112, 73025), (1150, 70612), (1270, 63940), (1390, 58420), (2300, 35306), (2540, 31970), (2780, 29210), (2921, 27800), (3175, 25576), (3197, 25400), (3475, 23368), (4600, 17653), (5080, 15985), (5560, 14605), (5842, 13900), (6350, 12788), (6394, 12700), (6950, 11684)]