256699360

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:524

約数の個数: 96

約数和(自身を含む): 628689600

約数和(自身を除く): 371990240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 109, 160, 164, 205, 218, 328, 359, 410, 436, 545, 656, 718, 820, 872, 1090, 1312, 1436, 1640, 1744, 1795, 2180, 2872, 3280, 3488, 3590, 4360, 4469, 5744, 6560, 7180, 8720, 8938, 11488, 14360, 14719, 17440, 17876, 22345, 28720, 29438, 35752, 39131, 44690, 57440, 58876, 71504, 73595, 78262, 89380, 117752, 143008, 147190, 156524, 178760, 195655, 235504, 294380, 313048, 357520, 391310, 471008, 588760, 626096, 715040, 782620, 1177520, 1252192, 1565240, 1604371, 2355040, 3130480, 3208742, 6260960, 6417484, 8021855, 12834968, 16043710, 25669936, 32087420, 51339872, 64174840, 128349680, 256699360]

約数ペア:

[(1, 256699360), (2, 128349680), (4, 64174840), (5, 51339872), (8, 32087420), (10, 25669936), (16, 16043710), (20, 12834968), (32, 8021855), (40, 6417484), (41, 6260960), (80, 3208742), (82, 3130480), (109, 2355040), (160, 1604371), (164, 1565240), (205, 1252192), (218, 1177520), (328, 782620), (359, 715040), (410, 626096), (436, 588760), (545, 471008), (656, 391310), (718, 357520), (820, 313048), (872, 294380), (1090, 235504), (1312, 195655), (1436, 178760), (1640, 156524), (1744, 147190), (1795, 143008), (2180, 117752), (2872, 89380), (3280, 78262), (3488, 73595), (3590, 71504), (4360, 58876), (4469, 57440), (5744, 44690), (6560, 39131), (7180, 35752), (8720, 29438), (8938, 28720), (11488, 22345), (14360, 17876), (14719, 17440)]