218085868

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 540546048

約数和(自身を除く): 322460180

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 31, 44, 49, 52, 62, 77, 91, 98, 124, 143, 154, 182, 196, 217, 251, 286, 308, 341, 364, 403, 434, 502, 539, 572, 637, 682, 806, 868, 1001, 1004, 1078, 1274, 1364, 1519, 1612, 1757, 2002, 2156, 2387, 2548, 2761, 2821, 3038, 3263, 3514, 4004, 4433, 4774, 5522, 5642, 6076, 6526, 7007, 7028, 7781, 8866, 9548, 11044, 11284, 12299, 13052, 14014, 15562, 16709, 17732, 19327, 19747, 22841, 24598, 28028, 31031, 31124, 33418, 35893, 38654, 39494, 45682, 49196, 54467, 62062, 66836, 71786, 77308, 78988, 85591, 91364, 101153, 108934, 124124, 135289, 143572, 159887, 171182, 202306, 217217, 217868, 251251, 270578, 319774, 342364, 381269, 404612, 434434, 502502, 541156, 599137, 639548, 708071, 762538, 868868, 1005004, 1112683, 1198274, 1416142, 1525076, 1758757, 2225366, 2396548, 2832284, 3517514, 4193959, 4450732, 4956497, 7035028, 7788781, 8387918, 9912994, 15577562, 16775836, 19825988, 31155124, 54521467, 109042934, 218085868]

約数ペア:

[(1, 218085868), (2, 109042934), (4, 54521467), (7, 31155124), (11, 19825988), (13, 16775836), (14, 15577562), (22, 9912994), (26, 8387918), (28, 7788781), (31, 7035028), (44, 4956497), (49, 4450732), (52, 4193959), (62, 3517514), (77, 2832284), (91, 2396548), (98, 2225366), (124, 1758757), (143, 1525076), (154, 1416142), (182, 1198274), (196, 1112683), (217, 1005004), (251, 868868), (286, 762538), (308, 708071), (341, 639548), (364, 599137), (403, 541156), (434, 502502), (502, 434434), (539, 404612), (572, 381269), (637, 342364), (682, 319774), (806, 270578), (868, 251251), (1001, 217868), (1004, 217217), (1078, 202306), (1274, 171182), (1364, 159887), (1519, 143572), (1612, 135289), (1757, 124124), (2002, 108934), (2156, 101153), (2387, 91364), (2548, 85591), (2761, 78988), (2821, 77308), (3038, 71786), (3263, 66836), (3514, 62062), (4004, 54467), (4433, 49196), (4774, 45682), (5522, 39494), (5642, 38654), (6076, 35893), (6526, 33418), (7007, 31124), (7028, 31031), (7781, 28028), (8866, 24598), (9548, 22841), (11044, 19747), (11284, 19327), (12299, 17732), (13052, 16709), (14014, 15562)]