19510720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3209}}^1$

素因数の和:3245

約数の個数: 56

約数和(自身を含む): 48920400

約数和(自身を除く): 29409680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3209, 6080, 6418, 12836, 16045, 25672, 32090, 51344, 60971, 64180, 102688, 121942, 128360, 205376, 243884, 256720, 304855, 487768, 513440, 609710, 975536, 1026880, 1219420, 1951072, 2438840, 3902144, 4877680, 9755360, 19510720]

約数ペア:

[(1, 19510720), (2, 9755360), (4, 4877680), (5, 3902144), (8, 2438840), (10, 1951072), (16, 1219420), (19, 1026880), (20, 975536), (32, 609710), (38, 513440), (40, 487768), (64, 304855), (76, 256720), (80, 243884), (95, 205376), (152, 128360), (160, 121942), (190, 102688), (304, 64180), (320, 60971), (380, 51344), (608, 32090), (760, 25672), (1216, 16045), (1520, 12836), (3040, 6418), (3209, 6080)]