4001600

素因数分解:

$2^6\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 84

約数和(自身を含む): 10251948

約数和(自身を除く): 6250348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 61, 64, 80, 82, 100, 122, 160, 164, 200, 205, 244, 305, 320, 328, 400, 410, 488, 610, 656, 800, 820, 976, 1025, 1220, 1312, 1525, 1600, 1640, 1952, 2050, 2440, 2501, 2624, 3050, 3280, 3904, 4100, 4880, 5002, 6100, 6560, 8200, 9760, 10004, 12200, 12505, 13120, 16400, 19520, 20008, 24400, 25010, 32800, 40016, 48800, 50020, 62525, 65600, 80032, 97600, 100040, 125050, 160064, 200080, 250100, 400160, 500200, 800320, 1000400, 2000800, 4001600]

約数ペア:

[(1, 4001600), (2, 2000800), (4, 1000400), (5, 800320), (8, 500200), (10, 400160), (16, 250100), (20, 200080), (25, 160064), (32, 125050), (40, 100040), (41, 97600), (50, 80032), (61, 65600), (64, 62525), (80, 50020), (82, 48800), (100, 40016), (122, 32800), (160, 25010), (164, 24400), (200, 20008), (205, 19520), (244, 16400), (305, 13120), (320, 12505), (328, 12200), (400, 10004), (410, 9760), (488, 8200), (610, 6560), (656, 6100), (800, 5002), (820, 4880), (976, 4100), (1025, 3904), (1220, 3280), (1312, 3050), (1525, 2624), (1600, 2501), (1640, 2440), (1952, 2050)]