2155126820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6449}}^1$

素因数の和:6514

約数の個数: 144

約数和(自身を含む): 5929459200

約数和(自身を除く): 3774332380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 245, 308, 310, 341, 385, 434, 490, 539, 620, 682, 770, 868, 980, 1078, 1085, 1364, 1519, 1540, 1705, 2156, 2170, 2387, 2695, 3038, 3410, 4340, 4774, 5390, 6076, 6449, 6820, 7595, 9548, 10780, 11935, 12898, 15190, 16709, 23870, 25796, 30380, 32245, 33418, 45143, 47740, 64490, 66836, 70939, 83545, 90286, 128980, 141878, 167090, 180572, 199919, 225715, 283756, 316001, 334180, 354695, 399838, 451430, 496573, 632002, 709390, 799676, 902860, 993146, 999595, 1264004, 1399433, 1418780, 1580005, 1986292, 1999190, 2199109, 2482865, 2798866, 3160010, 3476011, 3998380, 4398218, 4965730, 5597732, 6320020, 6952022, 6997165, 8796436, 9796031, 9931460, 10995545, 13904044, 13994330, 15393763, 17380055, 19592062, 21991090, 27988660, 30787526, 34760110, 39184124, 43982180, 48980155, 61575052, 69520220, 76968815, 97960310, 107756341, 153937630, 195920620, 215512682, 307875260, 431025364, 538781705, 1077563410, 2155126820]

約数ペア:

[(1, 2155126820), (2, 1077563410), (4, 538781705), (5, 431025364), (7, 307875260), (10, 215512682), (11, 195920620), (14, 153937630), (20, 107756341), (22, 97960310), (28, 76968815), (31, 69520220), (35, 61575052), (44, 48980155), (49, 43982180), (55, 39184124), (62, 34760110), (70, 30787526), (77, 27988660), (98, 21991090), (110, 19592062), (124, 17380055), (140, 15393763), (154, 13994330), (155, 13904044), (196, 10995545), (217, 9931460), (220, 9796031), (245, 8796436), (308, 6997165), (310, 6952022), (341, 6320020), (385, 5597732), (434, 4965730), (490, 4398218), (539, 3998380), (620, 3476011), (682, 3160010), (770, 2798866), (868, 2482865), (980, 2199109), (1078, 1999190), (1085, 1986292), (1364, 1580005), (1519, 1418780), (1540, 1399433), (1705, 1264004), (2156, 999595), (2170, 993146), (2387, 902860), (2695, 799676), (3038, 709390), (3410, 632002), (4340, 496573), (4774, 451430), (5390, 399838), (6076, 354695), (6449, 334180), (6820, 316001), (7595, 283756), (9548, 225715), (10780, 199919), (11935, 180572), (12898, 167090), (15190, 141878), (16709, 128980), (23870, 90286), (25796, 83545), (30380, 70939), (32245, 66836), (33418, 64490), (45143, 47740)]