20149740

素因数分解:

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

素因数の和:216

約数の個数: 144

約数和(自身を含む): 67267200

約数和(自身を除く): 47117460

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, 180, 195, 218, 234, 237, 260, 316, 327, 390, 395, 436, 468, 474, 545, 585, 654, 711, 780, 790, 948, 981, 1027, 1090, 1170, 1185, 1308, 1417, 1422, 1580, 1635, 1962, 2054, 2180, 2340, 2370, 2834, 2844, 3081, 3270, 3555, 3924, 4108, 4251, 4740, 4905, 5135, 5668, 6162, 6540, 7085, 7110, 8502, 8611, 9243, 9810, 10270, 12324, 12753, 14170, 14220, 15405, 17004, 17222, 18486, 19620, 20540, 21255, 25506, 25833, 28340, 30810, 34444, 36972, 42510, 43055, 46215, 51012, 51666, 61620, 63765, 77499, 85020, 86110, 92430, 103332, 111943, 127530, 129165, 154998, 172220, 184860, 223886, 255060, 258330, 309996, 335829, 387495, 447772, 516660, 559715, 671658, 774990, 1007487, 1119430, 1343316, 1549980, 1679145, 2014974, 2238860, 3358290, 4029948, 5037435, 6716580, 10074870, 20149740]

約数ペア:

[(1, 20149740), (2, 10074870), (3, 6716580), (4, 5037435), (5, 4029948), (6, 3358290), (9, 2238860), (10, 2014974), (12, 1679145), (13, 1549980), (15, 1343316), (18, 1119430), (20, 1007487), (26, 774990), (30, 671658), (36, 559715), (39, 516660), (45, 447772), (52, 387495), (60, 335829), (65, 309996), (78, 258330), (79, 255060), (90, 223886), (109, 184860), (117, 172220), (130, 154998), (156, 129165), (158, 127530), (180, 111943), (195, 103332), (218, 92430), (234, 86110), (237, 85020), (260, 77499), (316, 63765), (327, 61620), (390, 51666), (395, 51012), (436, 46215), (468, 43055), (474, 42510), (545, 36972), (585, 34444), (654, 30810), (711, 28340), (780, 25833), (790, 25506), (948, 21255), (981, 20540), (1027, 19620), (1090, 18486), (1170, 17222), (1185, 17004), (1308, 15405), (1417, 14220), (1422, 14170), (1580, 12753), (1635, 12324), (1962, 10270), (2054, 9810), (2180, 9243), (2340, 8611), (2370, 8502), (2834, 7110), (2844, 7085), (3081, 6540), (3270, 6162), (3555, 5668), (3924, 5135), (4108, 4905), (4251, 4740)]