161900800

素因数分解:

$2^8\times 5^2\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:684

約数の個数: 108

約数和(自身を含む): 411168996

約数和(自身を除く): 249268196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 128, 160, 164, 200, 205, 256, 320, 328, 400, 410, 617, 640, 656, 800, 820, 1025, 1234, 1280, 1312, 1600, 1640, 2050, 2468, 2624, 3085, 3200, 3280, 4100, 4936, 5248, 6170, 6400, 6560, 8200, 9872, 10496, 12340, 13120, 15425, 16400, 19744, 24680, 25297, 26240, 30850, 32800, 39488, 49360, 50594, 52480, 61700, 65600, 78976, 98720, 101188, 123400, 126485, 131200, 157952, 197440, 202376, 246800, 252970, 262400, 394880, 404752, 493600, 505940, 632425, 789760, 809504, 987200, 1011880, 1264850, 1619008, 1974400, 2023760, 2529700, 3238016, 3948800, 4047520, 5059400, 6476032, 8095040, 10118800, 16190080, 20237600, 32380160, 40475200, 80950400, 161900800]

約数ペア:

[(1, 161900800), (2, 80950400), (4, 40475200), (5, 32380160), (8, 20237600), (10, 16190080), (16, 10118800), (20, 8095040), (25, 6476032), (32, 5059400), (40, 4047520), (41, 3948800), (50, 3238016), (64, 2529700), (80, 2023760), (82, 1974400), (100, 1619008), (128, 1264850), (160, 1011880), (164, 987200), (200, 809504), (205, 789760), (256, 632425), (320, 505940), (328, 493600), (400, 404752), (410, 394880), (617, 262400), (640, 252970), (656, 246800), (800, 202376), (820, 197440), (1025, 157952), (1234, 131200), (1280, 126485), (1312, 123400), (1600, 101188), (1640, 98720), (2050, 78976), (2468, 65600), (2624, 61700), (3085, 52480), (3200, 50594), (3280, 49360), (4100, 39488), (4936, 32800), (5248, 30850), (6170, 26240), (6400, 25297), (6560, 24680), (8200, 19744), (9872, 16400), (10496, 15425), (12340, 13120)]