18825101555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{2857}}^1$

素因数の和:3048

約数の個数: 64

約数和(自身を含む): 26446331520

約数和(自身を除く): 7621229965

約数列:

[1, 5, 13, 17, 65, 67, 85, 89, 221, 335, 445, 871, 1105, 1139, 1157, 1513, 2857, 4355, 5695, 5785, 5963, 7565, 14285, 14807, 19669, 29815, 37141, 48569, 74035, 77519, 98345, 101371, 185705, 191419, 242845, 254273, 387595, 506855, 631397, 957095, 1271365, 1317823, 2488447, 3156985, 3254123, 3305549, 4322641, 6589115, 12442235, 16270615, 16527745, 17036291, 21613205, 42303599, 56194333, 85181455, 211517995, 221471783, 280971665, 289616947, 1107358915, 1448084735, 3765020311, 18825101555]

約数ペア:

[(1, 18825101555), (5, 3765020311), (13, 1448084735), (17, 1107358915), (65, 289616947), (67, 280971665), (85, 221471783), (89, 211517995), (221, 85181455), (335, 56194333), (445, 42303599), (871, 21613205), (1105, 17036291), (1139, 16527745), (1157, 16270615), (1513, 12442235), (2857, 6589115), (4355, 4322641), (5695, 3305549), (5785, 3254123), (5963, 3156985), (7565, 2488447), (14285, 1317823), (14807, 1271365), (19669, 957095), (29815, 631397), (37141, 506855), (48569, 387595), (74035, 254273), (77519, 242845), (98345, 191419), (101371, 185705)]