11681960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{809}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 27774900

約数和(自身を除く): 16092940

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 809, 1444, 1618, 1805, 2888, 3236, 3610, 4045, 6472, 7220, 8090, 14440, 15371, 16180, 30742, 32360, 61484, 76855, 122968, 153710, 292049, 307420, 584098, 614840, 1168196, 1460245, 2336392, 2920490, 5840980, 11681960]

約数ペア:

[(1, 11681960), (2, 5840980), (4, 2920490), (5, 2336392), (8, 1460245), (10, 1168196), (19, 614840), (20, 584098), (38, 307420), (40, 292049), (76, 153710), (95, 122968), (152, 76855), (190, 61484), (361, 32360), (380, 30742), (722, 16180), (760, 15371), (809, 14440), (1444, 8090), (1618, 7220), (1805, 6472), (2888, 4045), (3236, 3610)]