216404552

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 128

約数和(自身を含む): 529858560

約数和(自身を除く): 313454008

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 43, 52, 56, 62, 86, 91, 104, 124, 172, 182, 217, 223, 248, 301, 344, 364, 403, 434, 446, 559, 602, 728, 806, 868, 892, 1118, 1204, 1333, 1561, 1612, 1736, 1784, 2236, 2408, 2666, 2821, 2899, 3122, 3224, 3913, 4472, 5332, 5642, 5798, 6244, 6913, 7826, 9331, 9589, 10664, 11284, 11596, 12488, 13826, 15652, 17329, 18662, 19178, 20293, 22568, 23192, 27652, 31304, 34658, 37324, 38356, 40586, 48391, 55304, 67123, 69316, 74648, 76712, 81172, 89869, 96782, 121303, 124657, 134246, 138632, 162344, 179738, 193564, 242606, 249314, 268492, 297259, 359476, 387128, 485212, 498628, 536984, 594518, 629083, 718952, 872599, 970424, 997256, 1189036, 1258166, 1745198, 2080813, 2378072, 2516332, 3490396, 3864367, 4161626, 5032664, 6980792, 7728734, 8323252, 15457468, 16646504, 27050569, 30914936, 54101138, 108202276, 216404552]

約数ペア:

[(1, 216404552), (2, 108202276), (4, 54101138), (7, 30914936), (8, 27050569), (13, 16646504), (14, 15457468), (26, 8323252), (28, 7728734), (31, 6980792), (43, 5032664), (52, 4161626), (56, 3864367), (62, 3490396), (86, 2516332), (91, 2378072), (104, 2080813), (124, 1745198), (172, 1258166), (182, 1189036), (217, 997256), (223, 970424), (248, 872599), (301, 718952), (344, 629083), (364, 594518), (403, 536984), (434, 498628), (446, 485212), (559, 387128), (602, 359476), (728, 297259), (806, 268492), (868, 249314), (892, 242606), (1118, 193564), (1204, 179738), (1333, 162344), (1561, 138632), (1612, 134246), (1736, 124657), (1784, 121303), (2236, 96782), (2408, 89869), (2666, 81172), (2821, 76712), (2899, 74648), (3122, 69316), (3224, 67123), (3913, 55304), (4472, 48391), (5332, 40586), (5642, 38356), (5798, 37324), (6244, 34658), (6913, 31304), (7826, 27652), (9331, 23192), (9589, 22568), (10664, 20293), (11284, 19178), (11596, 18662), (12488, 17329), (13826, 15652)]