1977800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 96

約数和(自身を含む): 5356800

約数和(自身を除く): 3379000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 31, 40, 44, 50, 55, 58, 62, 88, 100, 110, 116, 124, 145, 155, 200, 220, 232, 248, 275, 290, 310, 319, 341, 440, 550, 580, 620, 638, 682, 725, 775, 899, 1100, 1160, 1240, 1276, 1364, 1450, 1550, 1595, 1705, 1798, 2200, 2552, 2728, 2900, 3100, 3190, 3410, 3596, 4495, 5800, 6200, 6380, 6820, 7192, 7975, 8525, 8990, 9889, 12760, 13640, 15950, 17050, 17980, 19778, 22475, 31900, 34100, 35960, 39556, 44950, 49445, 63800, 68200, 79112, 89900, 98890, 179800, 197780, 247225, 395560, 494450, 988900, 1977800]

約数ペア:

[(1, 1977800), (2, 988900), (4, 494450), (5, 395560), (8, 247225), (10, 197780), (11, 179800), (20, 98890), (22, 89900), (25, 79112), (29, 68200), (31, 63800), (40, 49445), (44, 44950), (50, 39556), (55, 35960), (58, 34100), (62, 31900), (88, 22475), (100, 19778), (110, 17980), (116, 17050), (124, 15950), (145, 13640), (155, 12760), (200, 9889), (220, 8990), (232, 8525), (248, 7975), (275, 7192), (290, 6820), (310, 6380), (319, 6200), (341, 5800), (440, 4495), (550, 3596), (580, 3410), (620, 3190), (638, 3100), (682, 2900), (725, 2728), (775, 2552), (899, 2200), (1100, 1798), (1160, 1705), (1240, 1595), (1276, 1550), (1364, 1450)]