161538520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:977

約数の個数: 128

約数和(自身を含む): 441262080

約数和(自身を除く): 279723560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 911, 1144, 1240, 1364, 1430, 1612, 1705, 1822, 2015, 2728, 2860, 3224, 3410, 3644, 4030, 4433, 4555, 5720, 6820, 7288, 8060, 8866, 9110, 10021, 11843, 13640, 16120, 17732, 18220, 20042, 22165, 23686, 28241, 35464, 36440, 40084, 44330, 47372, 50105, 56482, 59215, 80168, 88660, 94744, 100210, 112964, 118430, 130273, 141205, 177320, 200420, 225928, 236860, 260546, 282410, 310651, 367133, 400840, 473720, 521092, 564820, 621302, 651365, 734266, 1042184, 1129640, 1242604, 1302730, 1468532, 1553255, 1835665, 2485208, 2605460, 2937064, 3106510, 3671330, 4038463, 5210920, 6213020, 7342660, 8076926, 12426040, 14685320, 16153852, 20192315, 32307704, 40384630, 80769260, 161538520]

約数ペア:

[(1, 161538520), (2, 80769260), (4, 40384630), (5, 32307704), (8, 20192315), (10, 16153852), (11, 14685320), (13, 12426040), (20, 8076926), (22, 7342660), (26, 6213020), (31, 5210920), (40, 4038463), (44, 3671330), (52, 3106510), (55, 2937064), (62, 2605460), (65, 2485208), (88, 1835665), (104, 1553255), (110, 1468532), (124, 1302730), (130, 1242604), (143, 1129640), (155, 1042184), (220, 734266), (248, 651365), (260, 621302), (286, 564820), (310, 521092), (341, 473720), (403, 400840), (440, 367133), (520, 310651), (572, 282410), (620, 260546), (682, 236860), (715, 225928), (806, 200420), (911, 177320), (1144, 141205), (1240, 130273), (1364, 118430), (1430, 112964), (1612, 100210), (1705, 94744), (1822, 88660), (2015, 80168), (2728, 59215), (2860, 56482), (3224, 50105), (3410, 47372), (3644, 44330), (4030, 40084), (4433, 36440), (4555, 35464), (5720, 28241), (6820, 23686), (7288, 22165), (8060, 20042), (8866, 18220), (9110, 17732), (10021, 16120), (11843, 13640)]