19881416280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{997}}^1\times {\mathrm{15107}}^1$

素因数の和:16129

約数の個数: 128

約数和(自身を含む): 65136026880

約数和(自身を除く): 45254610600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 997, 1320, 1994, 2991, 3988, 4985, 5982, 7976, 9970, 10967, 11964, 14955, 15107, 19940, 21934, 23928, 29910, 30214, 32901, 39880, 43868, 45321, 54835, 59820, 60428, 65802, 75535, 87736, 90642, 109670, 119640, 120856, 131604, 151070, 164505, 166177, 181284, 219340, 226605, 263208, 302140, 329010, 332354, 362568, 438680, 453210, 498531, 604280, 658020, 664708, 830885, 906420, 997062, 1316040, 1329416, 1661770, 1812840, 1994124, 2492655, 3323540, 3988248, 4985310, 6647080, 9970620, 15061679, 19941240, 30123358, 45185037, 60246716, 75308395, 90370074, 120493432, 150616790, 165678469, 180740148, 225925185, 301233580, 331356938, 361480296, 451850370, 497035407, 602467160, 662713876, 828392345, 903700740, 994070814, 1325427752, 1656784690, 1807401480, 1988141628, 2485177035, 3313569380, 3976283256, 4970354070, 6627138760, 9940708140, 19881416280]

約数ペア:

[(1, 19881416280), (2, 9940708140), (3, 6627138760), (4, 4970354070), (5, 3976283256), (6, 3313569380), (8, 2485177035), (10, 1988141628), (11, 1807401480), (12, 1656784690), (15, 1325427752), (20, 994070814), (22, 903700740), (24, 828392345), (30, 662713876), (33, 602467160), (40, 497035407), (44, 451850370), (55, 361480296), (60, 331356938), (66, 301233580), (88, 225925185), (110, 180740148), (120, 165678469), (132, 150616790), (165, 120493432), (220, 90370074), (264, 75308395), (330, 60246716), (440, 45185037), (660, 30123358), (997, 19941240), (1320, 15061679), (1994, 9970620), (2991, 6647080), (3988, 4985310), (4985, 3988248), (5982, 3323540), (7976, 2492655), (9970, 1994124), (10967, 1812840), (11964, 1661770), (14955, 1329416), (15107, 1316040), (19940, 997062), (21934, 906420), (23928, 830885), (29910, 664708), (30214, 658020), (32901, 604280), (39880, 498531), (43868, 453210), (45321, 438680), (54835, 362568), (59820, 332354), (60428, 329010), (65802, 302140), (75535, 263208), (87736, 226605), (90642, 219340), (109670, 181284), (119640, 166177), (120856, 164505), (131604, 151070)]