80781540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 278691840

約数和(自身を除く): 197910300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 53, 57, 60, 70, 76, 84, 95, 105, 106, 114, 133, 140, 159, 190, 191, 210, 212, 228, 265, 266, 285, 318, 371, 380, 382, 399, 420, 530, 532, 570, 573, 636, 665, 742, 764, 795, 798, 955, 1007, 1060, 1113, 1140, 1146, 1330, 1337, 1484, 1590, 1596, 1855, 1910, 1995, 2014, 2226, 2292, 2660, 2674, 2865, 3021, 3180, 3629, 3710, 3820, 3990, 4011, 4028, 4452, 5035, 5348, 5565, 5730, 6042, 6685, 7049, 7258, 7420, 7980, 8022, 10070, 10123, 10887, 11130, 11460, 12084, 13370, 14098, 14516, 15105, 16044, 18145, 20055, 20140, 20246, 21147, 21774, 22260, 25403, 26740, 28196, 30210, 30369, 35245, 36290, 40110, 40492, 42294, 43548, 50615, 50806, 54435, 60420, 60738, 70490, 70861, 72580, 76209, 80220, 84588, 101230, 101612, 105735, 108870, 121476, 127015, 140980, 141722, 151845, 152418, 192337, 202460, 211470, 212583, 217740, 254030, 283444, 303690, 304836, 354305, 381045, 384674, 422940, 425166, 508060, 577011, 607380, 708610, 762090, 769348, 850332, 961685, 1062915, 1154022, 1346359, 1417220, 1524180, 1923370, 2125830, 2308044, 2692718, 2885055, 3846740, 4039077, 4251660, 5385436, 5770110, 6731795, 8078154, 11540220, 13463590, 16156308, 20195385, 26927180, 40390770, 80781540]

約数ペア:

[(1, 80781540), (2, 40390770), (3, 26927180), (4, 20195385), (5, 16156308), (6, 13463590), (7, 11540220), (10, 8078154), (12, 6731795), (14, 5770110), (15, 5385436), (19, 4251660), (20, 4039077), (21, 3846740), (28, 2885055), (30, 2692718), (35, 2308044), (38, 2125830), (42, 1923370), (53, 1524180), (57, 1417220), (60, 1346359), (70, 1154022), (76, 1062915), (84, 961685), (95, 850332), (105, 769348), (106, 762090), (114, 708610), (133, 607380), (140, 577011), (159, 508060), (190, 425166), (191, 422940), (210, 384674), (212, 381045), (228, 354305), (265, 304836), (266, 303690), (285, 283444), (318, 254030), (371, 217740), (380, 212583), (382, 211470), (399, 202460), (420, 192337), (530, 152418), (532, 151845), (570, 141722), (573, 140980), (636, 127015), (665, 121476), (742, 108870), (764, 105735), (795, 101612), (798, 101230), (955, 84588), (1007, 80220), (1060, 76209), (1113, 72580), (1140, 70861), (1146, 70490), (1330, 60738), (1337, 60420), (1484, 54435), (1590, 50806), (1596, 50615), (1855, 43548), (1910, 42294), (1995, 40492), (2014, 40110), (2226, 36290), (2292, 35245), (2660, 30369), (2674, 30210), (2865, 28196), (3021, 26740), (3180, 25403), (3629, 22260), (3710, 21774), (3820, 21147), (3990, 20246), (4011, 20140), (4028, 20055), (4452, 18145), (5035, 16044), (5348, 15105), (5565, 14516), (5730, 14098), (6042, 13370), (6685, 12084), (7049, 11460), (7258, 11130), (7420, 10887), (7980, 10123), (8022, 10070)]