255241980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:745

約数の個数: 216

約数和(自身を含む): 922954032

約数和(自身を除く): 667712052

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 49, 60, 63, 70, 84, 86, 90, 98, 105, 126, 129, 140, 147, 172, 180, 196, 210, 215, 245, 252, 258, 294, 301, 315, 387, 420, 430, 441, 490, 516, 588, 602, 630, 645, 673, 735, 774, 860, 882, 903, 980, 1204, 1260, 1290, 1346, 1470, 1505, 1548, 1764, 1806, 1935, 2019, 2107, 2205, 2580, 2692, 2709, 2940, 3010, 3365, 3612, 3870, 4038, 4214, 4410, 4515, 4711, 5418, 6020, 6057, 6321, 6730, 7740, 8076, 8428, 8820, 9030, 9422, 10095, 10535, 10836, 12114, 12642, 13460, 13545, 14133, 18060, 18844, 18963, 20190, 21070, 23555, 24228, 25284, 27090, 28266, 28939, 30285, 31605, 32977, 37926, 40380, 42140, 42399, 47110, 54180, 56532, 57878, 60570, 63210, 65954, 70665, 75852, 84798, 86817, 94220, 94815, 98931, 115756, 121140, 126420, 131908, 141330, 144695, 164885, 169596, 173634, 189630, 197862, 202573, 211995, 260451, 282660, 289390, 296793, 329770, 347268, 379260, 395724, 405146, 423990, 434085, 494655, 520902, 578780, 593586, 607719, 659540, 810292, 847980, 868170, 989310, 1012865, 1041804, 1187172, 1215438, 1302255, 1418011, 1483965, 1736340, 1823157, 1978620, 2025730, 2430876, 2604510, 2836022, 2967930, 3038595, 3646314, 4051460, 4254033, 5209020, 5672044, 5935860, 6077190, 7090055, 7292628, 8508066, 9115785, 12154380, 12762099, 14180110, 17016132, 18231570, 21270165, 25524198, 28360220, 36463140, 42540330, 51048396, 63810495, 85080660, 127620990, 255241980]

約数ペア:

[(1, 255241980), (2, 127620990), (3, 85080660), (4, 63810495), (5, 51048396), (6, 42540330), (7, 36463140), (9, 28360220), (10, 25524198), (12, 21270165), (14, 18231570), (15, 17016132), (18, 14180110), (20, 12762099), (21, 12154380), (28, 9115785), (30, 8508066), (35, 7292628), (36, 7090055), (42, 6077190), (43, 5935860), (45, 5672044), (49, 5209020), (60, 4254033), (63, 4051460), (70, 3646314), (84, 3038595), (86, 2967930), (90, 2836022), (98, 2604510), (105, 2430876), (126, 2025730), (129, 1978620), (140, 1823157), (147, 1736340), (172, 1483965), (180, 1418011), (196, 1302255), (210, 1215438), (215, 1187172), (245, 1041804), (252, 1012865), (258, 989310), (294, 868170), (301, 847980), (315, 810292), (387, 659540), (420, 607719), (430, 593586), (441, 578780), (490, 520902), (516, 494655), (588, 434085), (602, 423990), (630, 405146), (645, 395724), (673, 379260), (735, 347268), (774, 329770), (860, 296793), (882, 289390), (903, 282660), (980, 260451), (1204, 211995), (1260, 202573), (1290, 197862), (1346, 189630), (1470, 173634), (1505, 169596), (1548, 164885), (1764, 144695), (1806, 141330), (1935, 131908), (2019, 126420), (2107, 121140), (2205, 115756), (2580, 98931), (2692, 94815), (2709, 94220), (2940, 86817), (3010, 84798), (3365, 75852), (3612, 70665), (3870, 65954), (4038, 63210), (4214, 60570), (4410, 57878), (4515, 56532), (4711, 54180), (5418, 47110), (6020, 42399), (6057, 42140), (6321, 40380), (6730, 37926), (7740, 32977), (8076, 31605), (8428, 30285), (8820, 28939), (9030, 28266), (9422, 27090), (10095, 25284), (10535, 24228), (10836, 23555), (12114, 21070), (12642, 20190), (13460, 18963), (13545, 18844), (14133, 18060)]