261946620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 216

約数和(自身を含む): 879278400

約数和(自身を除く): 617331780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 79, 90, 109, 117, 130, 156, 158, 169, 180, 195, 218, 234, 237, 260, 316, 327, 338, 390, 395, 436, 468, 474, 507, 545, 585, 654, 676, 711, 780, 790, 845, 948, 981, 1014, 1027, 1090, 1170, 1185, 1308, 1417, 1422, 1521, 1580, 1635, 1690, 1962, 2028, 2054, 2180, 2340, 2370, 2535, 2834, 2844, 3042, 3081, 3270, 3380, 3555, 3924, 4108, 4251, 4740, 4905, 5070, 5135, 5668, 6084, 6162, 6540, 7085, 7110, 7605, 8502, 8611, 9243, 9810, 10140, 10270, 12324, 12753, 13351, 14170, 14220, 15210, 15405, 17004, 17222, 18421, 18486, 19620, 20540, 21255, 25506, 25833, 26702, 28340, 30420, 30810, 34444, 36842, 36972, 40053, 42510, 43055, 46215, 51012, 51666, 53404, 55263, 61620, 63765, 66755, 73684, 77499, 80106, 85020, 86110, 92105, 92430, 103332, 110526, 111943, 120159, 127530, 129165, 133510, 154998, 160212, 165789, 172220, 184210, 184860, 200265, 221052, 223886, 240318, 255060, 258330, 267020, 276315, 309996, 331578, 335829, 368420, 387495, 400530, 447772, 480636, 516660, 552630, 559715, 600795, 663156, 671658, 774990, 801060, 828945, 1007487, 1105260, 1119430, 1201590, 1343316, 1455259, 1549980, 1657890, 1679145, 2014974, 2238860, 2403180, 2910518, 3315780, 3358290, 4029948, 4365777, 5037435, 5821036, 6716580, 7276295, 8731554, 10074870, 13097331, 14552590, 17463108, 20149740, 21828885, 26194662, 29105180, 43657770, 52389324, 65486655, 87315540, 130973310, 261946620]

約数ペア:

[(1, 261946620), (2, 130973310), (3, 87315540), (4, 65486655), (5, 52389324), (6, 43657770), (9, 29105180), (10, 26194662), (12, 21828885), (13, 20149740), (15, 17463108), (18, 14552590), (20, 13097331), (26, 10074870), (30, 8731554), (36, 7276295), (39, 6716580), (45, 5821036), (52, 5037435), (60, 4365777), (65, 4029948), (78, 3358290), (79, 3315780), (90, 2910518), (109, 2403180), (117, 2238860), (130, 2014974), (156, 1679145), (158, 1657890), (169, 1549980), (180, 1455259), (195, 1343316), (218, 1201590), (234, 1119430), (237, 1105260), (260, 1007487), (316, 828945), (327, 801060), (338, 774990), (390, 671658), (395, 663156), (436, 600795), (468, 559715), (474, 552630), (507, 516660), (545, 480636), (585, 447772), (654, 400530), (676, 387495), (711, 368420), (780, 335829), (790, 331578), (845, 309996), (948, 276315), (981, 267020), (1014, 258330), (1027, 255060), (1090, 240318), (1170, 223886), (1185, 221052), (1308, 200265), (1417, 184860), (1422, 184210), (1521, 172220), (1580, 165789), (1635, 160212), (1690, 154998), (1962, 133510), (2028, 129165), (2054, 127530), (2180, 120159), (2340, 111943), (2370, 110526), (2535, 103332), (2834, 92430), (2844, 92105), (3042, 86110), (3081, 85020), (3270, 80106), (3380, 77499), (3555, 73684), (3924, 66755), (4108, 63765), (4251, 61620), (4740, 55263), (4905, 53404), (5070, 51666), (5135, 51012), (5668, 46215), (6084, 43055), (6162, 42510), (6540, 40053), (7085, 36972), (7110, 36842), (7605, 34444), (8502, 30810), (8611, 30420), (9243, 28340), (9810, 26702), (10140, 25833), (10270, 25506), (12324, 21255), (12753, 20540), (13351, 19620), (14170, 18486), (14220, 18421), (15210, 17222), (15405, 17004)]