28109970

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 58981230

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 107, 126, 135, 139, 189, 210, 214, 270, 278, 315, 321, 378, 417, 535, 630, 642, 695, 749, 834, 945, 963, 973, 1070, 1251, 1390, 1498, 1605, 1890, 1926, 1946, 2085, 2247, 2502, 2889, 2919, 3210, 3745, 3753, 4170, 4494, 4815, 4865, 5778, 5838, 6255, 6741, 7490, 7506, 8757, 9630, 9730, 11235, 12510, 13482, 14445, 14595, 14873, 17514, 18765, 20223, 22470, 26271, 28890, 29190, 29746, 33705, 37530, 40446, 43785, 44619, 52542, 67410, 74365, 87570, 89238, 101115, 104111, 131355, 133857, 148730, 202230, 208222, 223095, 262710, 267714, 312333, 401571, 446190, 520555, 624666, 669285, 803142, 936999, 1041110, 1338570, 1561665, 1873998, 2007855, 2810997, 3123330, 4015710, 4684995, 5621994, 9369990, 14054985, 28109970]

約数ペア:

[(1, 28109970), (2, 14054985), (3, 9369990), (5, 5621994), (6, 4684995), (7, 4015710), (9, 3123330), (10, 2810997), (14, 2007855), (15, 1873998), (18, 1561665), (21, 1338570), (27, 1041110), (30, 936999), (35, 803142), (42, 669285), (45, 624666), (54, 520555), (63, 446190), (70, 401571), (90, 312333), (105, 267714), (107, 262710), (126, 223095), (135, 208222), (139, 202230), (189, 148730), (210, 133857), (214, 131355), (270, 104111), (278, 101115), (315, 89238), (321, 87570), (378, 74365), (417, 67410), (535, 52542), (630, 44619), (642, 43785), (695, 40446), (749, 37530), (834, 33705), (945, 29746), (963, 29190), (973, 28890), (1070, 26271), (1251, 22470), (1390, 20223), (1498, 18765), (1605, 17514), (1890, 14873), (1926, 14595), (1946, 14445), (2085, 13482), (2247, 12510), (2502, 11235), (2889, 9730), (2919, 9630), (3210, 8757), (3745, 7506), (3753, 7490), (4170, 6741), (4494, 6255), (4815, 5838), (4865, 5778)]