19680160480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{340723}}^1$

素因数の和:340776

約数の個数: 72

約数和(自身を含む): 49070389032

約数和(自身を除く): 29390228552

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 361, 380, 608, 722, 760, 1444, 1520, 1805, 2888, 3040, 3610, 5776, 7220, 11552, 14440, 28880, 57760, 340723, 681446, 1362892, 1703615, 2725784, 3407230, 5451568, 6473737, 6814460, 10903136, 12947474, 13628920, 25894948, 27257840, 32368685, 51789896, 54515680, 64737370, 103579792, 123001003, 129474740, 207159584, 246002006, 258949480, 492004012, 517898960, 615005015, 984008024, 1035797920, 1230010030, 1968016048, 2460020060, 3936032096, 4920040120, 9840080240, 19680160480]

約数ペア:

[(1, 19680160480), (2, 9840080240), (4, 4920040120), (5, 3936032096), (8, 2460020060), (10, 1968016048), (16, 1230010030), (19, 1035797920), (20, 984008024), (32, 615005015), (38, 517898960), (40, 492004012), (76, 258949480), (80, 246002006), (95, 207159584), (152, 129474740), (160, 123001003), (190, 103579792), (304, 64737370), (361, 54515680), (380, 51789896), (608, 32368685), (722, 27257840), (760, 25894948), (1444, 13628920), (1520, 12947474), (1805, 10903136), (2888, 6814460), (3040, 6473737), (3610, 5451568), (5776, 3407230), (7220, 2725784), (11552, 1703615), (14440, 1362892), (28880, 681446), (57760, 340723)]