16006400

素因数分解:

$2^8\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 41249964

約数和(自身を除く): 25243564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 61, 64, 80, 82, 100, 122, 128, 160, 164, 200, 205, 244, 256, 305, 320, 328, 400, 410, 488, 610, 640, 656, 800, 820, 976, 1025, 1220, 1280, 1312, 1525, 1600, 1640, 1952, 2050, 2440, 2501, 2624, 3050, 3200, 3280, 3904, 4100, 4880, 5002, 5248, 6100, 6400, 6560, 7808, 8200, 9760, 10004, 10496, 12200, 12505, 13120, 15616, 16400, 19520, 20008, 24400, 25010, 26240, 32800, 39040, 40016, 48800, 50020, 52480, 62525, 65600, 78080, 80032, 97600, 100040, 125050, 131200, 160064, 195200, 200080, 250100, 262400, 320128, 390400, 400160, 500200, 640256, 800320, 1000400, 1600640, 2000800, 3201280, 4001600, 8003200, 16006400]

約数ペア:

[(1, 16006400), (2, 8003200), (4, 4001600), (5, 3201280), (8, 2000800), (10, 1600640), (16, 1000400), (20, 800320), (25, 640256), (32, 500200), (40, 400160), (41, 390400), (50, 320128), (61, 262400), (64, 250100), (80, 200080), (82, 195200), (100, 160064), (122, 131200), (128, 125050), (160, 100040), (164, 97600), (200, 80032), (205, 78080), (244, 65600), (256, 62525), (305, 52480), (320, 50020), (328, 48800), (400, 40016), (410, 39040), (488, 32800), (610, 26240), (640, 25010), (656, 24400), (800, 20008), (820, 19520), (976, 16400), (1025, 15616), (1220, 13120), (1280, 12505), (1312, 12200), (1525, 10496), (1600, 10004), (1640, 9760), (1952, 8200), (2050, 7808), (2440, 6560), (2501, 6400), (2624, 6100), (3050, 5248), (3200, 5002), (3280, 4880), (3904, 4100)]