81392220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4969}}^1$

素因数の和:5004

約数の個数: 144

約数和(自身を含む): 303925440

約数和(自身を除く): 222533220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 4969, 5460, 8190, 9938, 14907, 16380, 19876, 24845, 29814, 34783, 44721, 49690, 59628, 64597, 69566, 74535, 89442, 99380, 104349, 129194, 139132, 149070, 173915, 178884, 193791, 208698, 223605, 258388, 298140, 313047, 322985, 347830, 387582, 417396, 447210, 452179, 521745, 581373, 626094, 645970, 695660, 775164, 894420, 904358, 968955, 1043490, 1162746, 1252188, 1291940, 1356537, 1565235, 1808716, 1937910, 2086980, 2260895, 2325492, 2713074, 2906865, 3130470, 3875820, 4069611, 4521790, 5426148, 5813730, 6260940, 6782685, 8139222, 9043580, 11627460, 13565370, 16278444, 20348055, 27130740, 40696110, 81392220]

約数ペア:

[(1, 81392220), (2, 40696110), (3, 27130740), (4, 20348055), (5, 16278444), (6, 13565370), (7, 11627460), (9, 9043580), (10, 8139222), (12, 6782685), (13, 6260940), (14, 5813730), (15, 5426148), (18, 4521790), (20, 4069611), (21, 3875820), (26, 3130470), (28, 2906865), (30, 2713074), (35, 2325492), (36, 2260895), (39, 2086980), (42, 1937910), (45, 1808716), (52, 1565235), (60, 1356537), (63, 1291940), (65, 1252188), (70, 1162746), (78, 1043490), (84, 968955), (90, 904358), (91, 894420), (105, 775164), (117, 695660), (126, 645970), (130, 626094), (140, 581373), (156, 521745), (180, 452179), (182, 447210), (195, 417396), (210, 387582), (234, 347830), (252, 322985), (260, 313047), (273, 298140), (315, 258388), (364, 223605), (390, 208698), (420, 193791), (455, 178884), (468, 173915), (546, 149070), (585, 139132), (630, 129194), (780, 104349), (819, 99380), (910, 89442), (1092, 74535), (1170, 69566), (1260, 64597), (1365, 59628), (1638, 49690), (1820, 44721), (2340, 34783), (2730, 29814), (3276, 24845), (4095, 19876), (4969, 16380), (5460, 14907), (8190, 9938)]