19852872

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 59875200

約数和(自身を除く): 40022328

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 19, 24, 26, 34, 38, 39, 51, 52, 57, 68, 76, 78, 102, 104, 114, 136, 152, 156, 197, 204, 221, 228, 247, 312, 323, 394, 408, 442, 456, 494, 591, 646, 663, 741, 788, 884, 969, 988, 1182, 1292, 1326, 1482, 1576, 1768, 1938, 1976, 2364, 2561, 2584, 2652, 2964, 3349, 3743, 3876, 4199, 4728, 5122, 5304, 5928, 6698, 7486, 7683, 7752, 8398, 10047, 10244, 11229, 12597, 13396, 14972, 15366, 16796, 20094, 20488, 22458, 25194, 26792, 29944, 30732, 33592, 40188, 43537, 44916, 48659, 50388, 61464, 63631, 80376, 87074, 89832, 97318, 100776, 127262, 130611, 145977, 174148, 190893, 194636, 254524, 261222, 291954, 348296, 381786, 389272, 509048, 522444, 583908, 763572, 827203, 1044888, 1167816, 1527144, 1654406, 2481609, 3308812, 4963218, 6617624, 9926436, 19852872]

約数ペア:

[(1, 19852872), (2, 9926436), (3, 6617624), (4, 4963218), (6, 3308812), (8, 2481609), (12, 1654406), (13, 1527144), (17, 1167816), (19, 1044888), (24, 827203), (26, 763572), (34, 583908), (38, 522444), (39, 509048), (51, 389272), (52, 381786), (57, 348296), (68, 291954), (76, 261222), (78, 254524), (102, 194636), (104, 190893), (114, 174148), (136, 145977), (152, 130611), (156, 127262), (197, 100776), (204, 97318), (221, 89832), (228, 87074), (247, 80376), (312, 63631), (323, 61464), (394, 50388), (408, 48659), (442, 44916), (456, 43537), (494, 40188), (591, 33592), (646, 30732), (663, 29944), (741, 26792), (788, 25194), (884, 22458), (969, 20488), (988, 20094), (1182, 16796), (1292, 15366), (1326, 14972), (1482, 13396), (1576, 12597), (1768, 11229), (1938, 10244), (1976, 10047), (2364, 8398), (2561, 7752), (2584, 7683), (2652, 7486), (2964, 6698), (3349, 5928), (3743, 5304), (3876, 5122), (4199, 4728)]