28262500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 144

約数和(自身を含む): 78744960

約数和(自身を除く): 50482460

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 25, 28, 34, 35, 38, 50, 68, 70, 76, 85, 95, 100, 119, 125, 133, 140, 170, 175, 190, 238, 250, 266, 323, 340, 350, 380, 425, 475, 476, 500, 532, 595, 625, 646, 665, 700, 850, 875, 950, 1190, 1250, 1292, 1330, 1615, 1700, 1750, 1900, 2125, 2261, 2375, 2380, 2500, 2660, 2975, 3125, 3230, 3325, 3500, 4250, 4375, 4522, 4750, 5950, 6250, 6460, 6650, 8075, 8500, 8750, 9044, 9500, 10625, 11305, 11875, 11900, 12500, 13300, 14875, 16150, 16625, 17500, 21250, 21875, 22610, 23750, 29750, 32300, 33250, 40375, 42500, 43750, 45220, 47500, 53125, 56525, 59375, 59500, 66500, 74375, 80750, 83125, 87500, 106250, 113050, 118750, 148750, 161500, 166250, 201875, 212500, 226100, 237500, 282625, 297500, 332500, 371875, 403750, 415625, 565250, 743750, 807500, 831250, 1009375, 1130500, 1413125, 1487500, 1662500, 2018750, 2826250, 4037500, 5652500, 7065625, 14131250, 28262500]

約数ペア:

[(1, 28262500), (2, 14131250), (4, 7065625), (5, 5652500), (7, 4037500), (10, 2826250), (14, 2018750), (17, 1662500), (19, 1487500), (20, 1413125), (25, 1130500), (28, 1009375), (34, 831250), (35, 807500), (38, 743750), (50, 565250), (68, 415625), (70, 403750), (76, 371875), (85, 332500), (95, 297500), (100, 282625), (119, 237500), (125, 226100), (133, 212500), (140, 201875), (170, 166250), (175, 161500), (190, 148750), (238, 118750), (250, 113050), (266, 106250), (323, 87500), (340, 83125), (350, 80750), (380, 74375), (425, 66500), (475, 59500), (476, 59375), (500, 56525), (532, 53125), (595, 47500), (625, 45220), (646, 43750), (665, 42500), (700, 40375), (850, 33250), (875, 32300), (950, 29750), (1190, 23750), (1250, 22610), (1292, 21875), (1330, 21250), (1615, 17500), (1700, 16625), (1750, 16150), (1900, 14875), (2125, 13300), (2261, 12500), (2375, 11900), (2380, 11875), (2500, 11305), (2660, 10625), (2975, 9500), (3125, 9044), (3230, 8750), (3325, 8500), (3500, 8075), (4250, 6650), (4375, 6460), (4522, 6250), (4750, 5950)]