28062440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 77137920

約数和(自身を除く): 49075480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 53, 56, 61, 62, 70, 106, 122, 124, 140, 155, 212, 217, 244, 248, 265, 280, 305, 310, 371, 424, 427, 434, 488, 530, 610, 620, 742, 854, 868, 1060, 1085, 1220, 1240, 1484, 1643, 1708, 1736, 1855, 1891, 2120, 2135, 2170, 2440, 2968, 3233, 3286, 3416, 3710, 3782, 4270, 4340, 6466, 6572, 7420, 7564, 8215, 8540, 8680, 9455, 11501, 12932, 13144, 13237, 14840, 15128, 16165, 16430, 17080, 18910, 22631, 23002, 25864, 26474, 32330, 32860, 37820, 45262, 46004, 52948, 57505, 64660, 65720, 66185, 75640, 90524, 92008, 100223, 105896, 113155, 115010, 129320, 132370, 181048, 200446, 226310, 230020, 264740, 400892, 452620, 460040, 501115, 529480, 701561, 801784, 905240, 1002230, 1403122, 2004460, 2806244, 3507805, 4008920, 5612488, 7015610, 14031220, 28062440]

約数ペア:

[(1, 28062440), (2, 14031220), (4, 7015610), (5, 5612488), (7, 4008920), (8, 3507805), (10, 2806244), (14, 2004460), (20, 1403122), (28, 1002230), (31, 905240), (35, 801784), (40, 701561), (53, 529480), (56, 501115), (61, 460040), (62, 452620), (70, 400892), (106, 264740), (122, 230020), (124, 226310), (140, 200446), (155, 181048), (212, 132370), (217, 129320), (244, 115010), (248, 113155), (265, 105896), (280, 100223), (305, 92008), (310, 90524), (371, 75640), (424, 66185), (427, 65720), (434, 64660), (488, 57505), (530, 52948), (610, 46004), (620, 45262), (742, 37820), (854, 32860), (868, 32330), (1060, 26474), (1085, 25864), (1220, 23002), (1240, 22631), (1484, 18910), (1643, 17080), (1708, 16430), (1736, 16165), (1855, 15128), (1891, 14840), (2120, 13237), (2135, 13144), (2170, 12932), (2440, 11501), (2968, 9455), (3233, 8680), (3286, 8540), (3416, 8215), (3710, 7564), (3782, 7420), (4270, 6572), (4340, 6466)]