398479952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2212

約数の個数: 80

約数和(自身を含む): 888276480

約数和(自身を除く): 489796528

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 31, 52, 58, 62, 104, 116, 124, 208, 232, 248, 377, 403, 464, 496, 754, 806, 899, 1508, 1612, 1798, 2131, 3016, 3224, 3596, 4262, 6032, 6448, 7192, 8524, 11687, 14384, 17048, 23374, 27703, 34096, 46748, 55406, 61799, 66061, 93496, 110812, 123598, 132122, 186992, 221624, 247196, 264244, 443248, 494392, 528488, 803387, 858793, 988784, 1056976, 1606774, 1717586, 1915769, 3213548, 3435172, 3831538, 6427096, 6870344, 7663076, 12854192, 13740688, 15326152, 24904997, 30652304, 49809994, 99619988, 199239976, 398479952]

約数ペア:

[(1, 398479952), (2, 199239976), (4, 99619988), (8, 49809994), (13, 30652304), (16, 24904997), (26, 15326152), (29, 13740688), (31, 12854192), (52, 7663076), (58, 6870344), (62, 6427096), (104, 3831538), (116, 3435172), (124, 3213548), (208, 1915769), (232, 1717586), (248, 1606774), (377, 1056976), (403, 988784), (464, 858793), (496, 803387), (754, 528488), (806, 494392), (899, 443248), (1508, 264244), (1612, 247196), (1798, 221624), (2131, 186992), (3016, 132122), (3224, 123598), (3596, 110812), (4262, 93496), (6032, 66061), (6448, 61799), (7192, 55406), (8524, 46748), (11687, 34096), (14384, 27703), (17048, 23374)]