20153171720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{683}}^1\times {\mathrm{67061}}^1$

素因数の和:67766

約数の個数: 64

約数和(自身を含む): 49540040640

約数和(自身を除く): 29386868920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 683, 1366, 2732, 3415, 5464, 6830, 7513, 13660, 15026, 27320, 30052, 37565, 60104, 67061, 75130, 134122, 150260, 268244, 300520, 335305, 536488, 670610, 737671, 1341220, 1475342, 2682440, 2950684, 3688355, 5901368, 7376710, 14753420, 29506840, 45802663, 91605326, 183210652, 229013315, 366421304, 458026630, 503829293, 916053260, 1007658586, 1832106520, 2015317172, 2519146465, 4030634344, 5038292930, 10076585860, 20153171720]

約数ペア:

[(1, 20153171720), (2, 10076585860), (4, 5038292930), (5, 4030634344), (8, 2519146465), (10, 2015317172), (11, 1832106520), (20, 1007658586), (22, 916053260), (40, 503829293), (44, 458026630), (55, 366421304), (88, 229013315), (110, 183210652), (220, 91605326), (440, 45802663), (683, 29506840), (1366, 14753420), (2732, 7376710), (3415, 5901368), (5464, 3688355), (6830, 2950684), (7513, 2682440), (13660, 1475342), (15026, 1341220), (27320, 737671), (30052, 670610), (37565, 536488), (60104, 335305), (67061, 300520), (75130, 268244), (134122, 150260)]