39415760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 95900112

約数和(自身を除く): 56484352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 197, 205, 244, 305, 328, 394, 410, 488, 610, 656, 788, 820, 976, 985, 1220, 1576, 1640, 1970, 2440, 2501, 3152, 3280, 3940, 4880, 5002, 7880, 8077, 10004, 12017, 12505, 15760, 16154, 20008, 24034, 25010, 32308, 40016, 40385, 48068, 50020, 60085, 64616, 80770, 96136, 100040, 120170, 129232, 161540, 192272, 200080, 240340, 323080, 480680, 492697, 646160, 961360, 985394, 1970788, 2463485, 3941576, 4926970, 7883152, 9853940, 19707880, 39415760]

約数ペア:

[(1, 39415760), (2, 19707880), (4, 9853940), (5, 7883152), (8, 4926970), (10, 3941576), (16, 2463485), (20, 1970788), (40, 985394), (41, 961360), (61, 646160), (80, 492697), (82, 480680), (122, 323080), (164, 240340), (197, 200080), (205, 192272), (244, 161540), (305, 129232), (328, 120170), (394, 100040), (410, 96136), (488, 80770), (610, 64616), (656, 60085), (788, 50020), (820, 48068), (976, 40385), (985, 40016), (1220, 32308), (1576, 25010), (1640, 24034), (1970, 20008), (2440, 16154), (2501, 15760), (3152, 12505), (3280, 12017), (3940, 10004), (4880, 8077), (5002, 7880)]