257978448

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19687}}^1$

素因数の和:19721

約数の個数: 120

約数和(自身を含む): 888637568

約数和(自身を除く): 630659120

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 104, 112, 117, 126, 144, 156, 168, 182, 208, 234, 252, 273, 312, 336, 364, 468, 504, 546, 624, 728, 819, 936, 1008, 1092, 1456, 1638, 1872, 2184, 3276, 4368, 6552, 13104, 19687, 39374, 59061, 78748, 118122, 137809, 157496, 177183, 236244, 255931, 275618, 314992, 354366, 413427, 472488, 511862, 551236, 708732, 767793, 826854, 944976, 1023724, 1102472, 1240281, 1417464, 1535586, 1653708, 1791517, 2047448, 2204944, 2303379, 2480562, 2834928, 3071172, 3307416, 3583034, 4094896, 4606758, 4961124, 5374551, 6142344, 6614832, 7166068, 9213516, 9922248, 10749102, 12284688, 14332136, 16123653, 18427032, 19844496, 21498204, 28664272, 32247306, 36854064, 42996408, 64494612, 85992816, 128989224, 257978448]

約数ペア:

[(1, 257978448), (2, 128989224), (3, 85992816), (4, 64494612), (6, 42996408), (7, 36854064), (8, 32247306), (9, 28664272), (12, 21498204), (13, 19844496), (14, 18427032), (16, 16123653), (18, 14332136), (21, 12284688), (24, 10749102), (26, 9922248), (28, 9213516), (36, 7166068), (39, 6614832), (42, 6142344), (48, 5374551), (52, 4961124), (56, 4606758), (63, 4094896), (72, 3583034), (78, 3307416), (84, 3071172), (91, 2834928), (104, 2480562), (112, 2303379), (117, 2204944), (126, 2047448), (144, 1791517), (156, 1653708), (168, 1535586), (182, 1417464), (208, 1240281), (234, 1102472), (252, 1023724), (273, 944976), (312, 826854), (336, 767793), (364, 708732), (468, 551236), (504, 511862), (546, 472488), (624, 413427), (728, 354366), (819, 314992), (936, 275618), (1008, 255931), (1092, 236244), (1456, 177183), (1638, 157496), (1872, 137809), (2184, 118122), (3276, 78748), (4368, 59061), (6552, 39374), (13104, 19687)]