2881900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 7499520

約数和(自身を除く): 4617620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 179, 230, 322, 350, 358, 460, 575, 644, 700, 716, 805, 895, 1150, 1253, 1610, 1790, 2300, 2506, 3220, 3580, 4025, 4117, 4475, 5012, 6265, 8050, 8234, 8950, 12530, 16100, 16468, 17900, 20585, 25060, 28819, 31325, 41170, 57638, 62650, 82340, 102925, 115276, 125300, 144095, 205850, 288190, 411700, 576380, 720475, 1440950, 2881900]

約数ペア:

[(1, 2881900), (2, 1440950), (4, 720475), (5, 576380), (7, 411700), (10, 288190), (14, 205850), (20, 144095), (23, 125300), (25, 115276), (28, 102925), (35, 82340), (46, 62650), (50, 57638), (70, 41170), (92, 31325), (100, 28819), (115, 25060), (140, 20585), (161, 17900), (175, 16468), (179, 16100), (230, 12530), (322, 8950), (350, 8234), (358, 8050), (460, 6265), (575, 5012), (644, 4475), (700, 4117), (716, 4025), (805, 3580), (895, 3220), (1150, 2506), (1253, 2300), (1610, 1790)]