20525700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 67565120

約数和(自身を除く): 47039420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 25, 26, 30, 38, 39, 50, 52, 57, 60, 65, 75, 76, 78, 95, 100, 114, 130, 150, 156, 190, 195, 228, 247, 260, 277, 285, 300, 325, 380, 390, 475, 494, 554, 570, 650, 741, 780, 831, 950, 975, 988, 1108, 1140, 1235, 1300, 1385, 1425, 1482, 1662, 1900, 1950, 2470, 2770, 2850, 2964, 3324, 3601, 3705, 3900, 4155, 4940, 5263, 5540, 5700, 6175, 6925, 7202, 7410, 8310, 10526, 10803, 12350, 13850, 14404, 14820, 15789, 16620, 18005, 18525, 20775, 21052, 21606, 24700, 26315, 27700, 31578, 36010, 37050, 41550, 43212, 52630, 54015, 63156, 68419, 72020, 74100, 78945, 83100, 90025, 105260, 108030, 131575, 136838, 157890, 180050, 205257, 216060, 263150, 270075, 273676, 315780, 342095, 360100, 394725, 410514, 526300, 540150, 684190, 789450, 821028, 1026285, 1080300, 1368380, 1578900, 1710475, 2052570, 3420950, 4105140, 5131425, 6841900, 10262850, 20525700]

約数ペア:

[(1, 20525700), (2, 10262850), (3, 6841900), (4, 5131425), (5, 4105140), (6, 3420950), (10, 2052570), (12, 1710475), (13, 1578900), (15, 1368380), (19, 1080300), (20, 1026285), (25, 821028), (26, 789450), (30, 684190), (38, 540150), (39, 526300), (50, 410514), (52, 394725), (57, 360100), (60, 342095), (65, 315780), (75, 273676), (76, 270075), (78, 263150), (95, 216060), (100, 205257), (114, 180050), (130, 157890), (150, 136838), (156, 131575), (190, 108030), (195, 105260), (228, 90025), (247, 83100), (260, 78945), (277, 74100), (285, 72020), (300, 68419), (325, 63156), (380, 54015), (390, 52630), (475, 43212), (494, 41550), (554, 37050), (570, 36010), (650, 31578), (741, 27700), (780, 26315), (831, 24700), (950, 21606), (975, 21052), (988, 20775), (1108, 18525), (1140, 18005), (1235, 16620), (1300, 15789), (1385, 14820), (1425, 14404), (1482, 13850), (1662, 12350), (1900, 10803), (1950, 10526), (2470, 8310), (2770, 7410), (2850, 7202), (2964, 6925), (3324, 6175), (3601, 5700), (3705, 5540), (3900, 5263), (4155, 4940)]