20158389640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{827}}^1$

素因数の和:1135

約数の個数: 128

約数和(自身を含む): 47323180800

約数和(自身を除く): 27164791160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 167, 178, 205, 328, 334, 356, 410, 445, 668, 712, 820, 827, 835, 890, 1336, 1640, 1654, 1670, 1780, 3308, 3340, 3560, 3649, 4135, 6616, 6680, 6847, 7298, 8270, 13694, 14596, 14863, 16540, 18245, 27388, 29192, 29726, 33080, 33907, 34235, 36490, 54776, 59452, 67814, 68470, 72980, 73603, 74315, 118904, 135628, 136940, 138109, 145960, 147206, 148630, 169535, 271256, 273880, 276218, 294412, 297260, 339070, 368015, 552436, 588824, 594520, 609383, 678140, 690545, 736030, 1104872, 1218766, 1356280, 1381090, 1472060, 2437532, 2762180, 2944120, 3017723, 3046915, 4875064, 5524360, 5662469, 6035446, 6093830, 11324938, 12070892, 12187660, 12291701, 15088615, 22649876, 24141784, 24375320, 24583402, 28312345, 30177230, 45299752, 49166804, 56624690, 60354460, 61458505, 98333608, 113249380, 120708920, 122917010, 226498760, 245834020, 491668040, 503959741, 1007919482, 2015838964, 2519798705, 4031677928, 5039597410, 10079194820, 20158389640]

約数ペア:

[(1, 20158389640), (2, 10079194820), (4, 5039597410), (5, 4031677928), (8, 2519798705), (10, 2015838964), (20, 1007919482), (40, 503959741), (41, 491668040), (82, 245834020), (89, 226498760), (164, 122917010), (167, 120708920), (178, 113249380), (205, 98333608), (328, 61458505), (334, 60354460), (356, 56624690), (410, 49166804), (445, 45299752), (668, 30177230), (712, 28312345), (820, 24583402), (827, 24375320), (835, 24141784), (890, 22649876), (1336, 15088615), (1640, 12291701), (1654, 12187660), (1670, 12070892), (1780, 11324938), (3308, 6093830), (3340, 6035446), (3560, 5662469), (3649, 5524360), (4135, 4875064), (6616, 3046915), (6680, 3017723), (6847, 2944120), (7298, 2762180), (8270, 2437532), (13694, 1472060), (14596, 1381090), (14863, 1356280), (16540, 1218766), (18245, 1104872), (27388, 736030), (29192, 690545), (29726, 678140), (33080, 609383), (33907, 594520), (34235, 588824), (36490, 552436), (54776, 368015), (59452, 339070), (67814, 297260), (68470, 294412), (72980, 276218), (73603, 273880), (74315, 271256), (118904, 169535), (135628, 148630), (136940, 147206), (138109, 145960)]