40816940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{461}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 90810720

約数和(自身を除く): 49993780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 233, 380, 461, 466, 922, 932, 1165, 1844, 2305, 2330, 4427, 4610, 4660, 8759, 8854, 9220, 17518, 17708, 22135, 35036, 43795, 44270, 87590, 88540, 107413, 175180, 214826, 429652, 537065, 1074130, 2040847, 2148260, 4081694, 8163388, 10204235, 20408470, 40816940]

約数ペア:

[(1, 40816940), (2, 20408470), (4, 10204235), (5, 8163388), (10, 4081694), (19, 2148260), (20, 2040847), (38, 1074130), (76, 537065), (95, 429652), (190, 214826), (233, 175180), (380, 107413), (461, 88540), (466, 87590), (922, 44270), (932, 43795), (1165, 35036), (1844, 22135), (2305, 17708), (2330, 17518), (4427, 9220), (4610, 8854), (4660, 8759)]