1600640

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 3984120

約数和(自身を除く): 2383480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 61, 64, 80, 82, 122, 128, 160, 164, 205, 244, 305, 320, 328, 410, 488, 610, 640, 656, 820, 976, 1220, 1312, 1640, 1952, 2440, 2501, 2624, 3280, 3904, 4880, 5002, 5248, 6560, 7808, 9760, 10004, 12505, 13120, 19520, 20008, 25010, 26240, 39040, 40016, 50020, 80032, 100040, 160064, 200080, 320128, 400160, 800320, 1600640]

約数ペア:

[(1, 1600640), (2, 800320), (4, 400160), (5, 320128), (8, 200080), (10, 160064), (16, 100040), (20, 80032), (32, 50020), (40, 40016), (41, 39040), (61, 26240), (64, 25010), (80, 20008), (82, 19520), (122, 13120), (128, 12505), (160, 10004), (164, 9760), (205, 7808), (244, 6560), (305, 5248), (320, 5002), (328, 4880), (410, 3904), (488, 3280), (610, 2624), (640, 2501), (656, 2440), (820, 1952), (976, 1640), (1220, 1312)]