642326958

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20639}}^1$

素因数の和:20686

約数の個数: 96

約数和(自身を含む): 1803110400

約数和(自身を除く): 1160783442

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 234, 247, 266, 273, 342, 399, 494, 546, 741, 798, 819, 1197, 1482, 1638, 1729, 2223, 2394, 3458, 4446, 5187, 10374, 15561, 20639, 31122, 41278, 61917, 123834, 144473, 185751, 268307, 288946, 371502, 392141, 433419, 536614, 784282, 804921, 866838, 1176423, 1300257, 1609842, 1878149, 2352846, 2414763, 2600514, 2744987, 3529269, 3756298, 4829526, 5097833, 5489974, 5634447, 7058538, 8234961, 10195666, 11268894, 15293499, 16469922, 16903341, 24704883, 30586998, 33806682, 35684831, 45880497, 49409766, 71369662, 91760994, 107054493, 214108986, 321163479, 642326958]

約数ペア:

[(1, 642326958), (2, 321163479), (3, 214108986), (6, 107054493), (7, 91760994), (9, 71369662), (13, 49409766), (14, 45880497), (18, 35684831), (19, 33806682), (21, 30586998), (26, 24704883), (38, 16903341), (39, 16469922), (42, 15293499), (57, 11268894), (63, 10195666), (78, 8234961), (91, 7058538), (114, 5634447), (117, 5489974), (126, 5097833), (133, 4829526), (171, 3756298), (182, 3529269), (234, 2744987), (247, 2600514), (266, 2414763), (273, 2352846), (342, 1878149), (399, 1609842), (494, 1300257), (546, 1176423), (741, 866838), (798, 804921), (819, 784282), (1197, 536614), (1482, 433419), (1638, 392141), (1729, 371502), (2223, 288946), (2394, 268307), (3458, 185751), (4446, 144473), (5187, 123834), (10374, 61917), (15561, 41278), (20639, 31122)]