28805980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 72930816

約数和(自身を除く): 44124836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 67, 70, 74, 83, 134, 140, 148, 166, 185, 259, 268, 332, 335, 370, 415, 469, 518, 581, 670, 740, 830, 938, 1036, 1162, 1295, 1340, 1660, 1876, 2324, 2345, 2479, 2590, 2905, 3071, 4690, 4958, 5180, 5561, 5810, 6142, 9380, 9916, 11122, 11620, 12284, 12395, 15355, 17353, 21497, 22244, 24790, 27805, 30710, 34706, 38927, 42994, 49580, 55610, 61420, 69412, 77854, 85988, 86765, 107485, 111220, 155708, 173530, 194635, 205757, 214970, 347060, 389270, 411514, 429940, 778540, 823028, 1028785, 1440299, 2057570, 2880598, 4115140, 5761196, 7201495, 14402990, 28805980]

約数ペア:

[(1, 28805980), (2, 14402990), (4, 7201495), (5, 5761196), (7, 4115140), (10, 2880598), (14, 2057570), (20, 1440299), (28, 1028785), (35, 823028), (37, 778540), (67, 429940), (70, 411514), (74, 389270), (83, 347060), (134, 214970), (140, 205757), (148, 194635), (166, 173530), (185, 155708), (259, 111220), (268, 107485), (332, 86765), (335, 85988), (370, 77854), (415, 69412), (469, 61420), (518, 55610), (581, 49580), (670, 42994), (740, 38927), (830, 34706), (938, 30710), (1036, 27805), (1162, 24790), (1295, 22244), (1340, 21497), (1660, 17353), (1876, 15355), (2324, 12395), (2345, 12284), (2479, 11620), (2590, 11122), (2905, 9916), (3071, 9380), (4690, 6142), (4958, 5810), (5180, 5561)]