83157640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 192242160

約数和(自身を除く): 109084520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 173, 197, 244, 305, 346, 394, 488, 610, 692, 788, 865, 985, 1220, 1384, 1576, 1730, 1970, 2440, 3460, 3940, 6920, 7880, 10553, 12017, 21106, 24034, 34081, 42212, 48068, 52765, 60085, 68162, 84424, 96136, 105530, 120170, 136324, 170405, 211060, 240340, 272648, 340810, 422120, 480680, 681620, 1363240, 2078941, 4157882, 8315764, 10394705, 16631528, 20789410, 41578820, 83157640]

約数ペア:

[(1, 83157640), (2, 41578820), (4, 20789410), (5, 16631528), (8, 10394705), (10, 8315764), (20, 4157882), (40, 2078941), (61, 1363240), (122, 681620), (173, 480680), (197, 422120), (244, 340810), (305, 272648), (346, 240340), (394, 211060), (488, 170405), (610, 136324), (692, 120170), (788, 105530), (865, 96136), (985, 84424), (1220, 68162), (1384, 60085), (1576, 52765), (1730, 48068), (1970, 42212), (2440, 34081), (3460, 24034), (3940, 21106), (6920, 12017), (7880, 10553)]