28882280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 80352000

約数和(自身を除く): 51469720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 61, 70, 76, 89, 95, 122, 133, 140, 152, 178, 190, 244, 266, 280, 305, 356, 380, 427, 445, 488, 532, 610, 623, 665, 712, 760, 854, 890, 1064, 1159, 1220, 1246, 1330, 1691, 1708, 1780, 2135, 2318, 2440, 2492, 2660, 3115, 3382, 3416, 3560, 4270, 4636, 4984, 5320, 5429, 5795, 6230, 6764, 8113, 8455, 8540, 9272, 10858, 11590, 11837, 12460, 13528, 16226, 16910, 17080, 21716, 23180, 23674, 24920, 27145, 32452, 33820, 38003, 40565, 43432, 46360, 47348, 54290, 59185, 64904, 67640, 76006, 81130, 94696, 103151, 108580, 118370, 152012, 162260, 190015, 206302, 217160, 236740, 304024, 324520, 380030, 412604, 473480, 515755, 722057, 760060, 825208, 1031510, 1444114, 1520120, 2063020, 2888228, 3610285, 4126040, 5776456, 7220570, 14441140, 28882280]

約数ペア:

[(1, 28882280), (2, 14441140), (4, 7220570), (5, 5776456), (7, 4126040), (8, 3610285), (10, 2888228), (14, 2063020), (19, 1520120), (20, 1444114), (28, 1031510), (35, 825208), (38, 760060), (40, 722057), (56, 515755), (61, 473480), (70, 412604), (76, 380030), (89, 324520), (95, 304024), (122, 236740), (133, 217160), (140, 206302), (152, 190015), (178, 162260), (190, 152012), (244, 118370), (266, 108580), (280, 103151), (305, 94696), (356, 81130), (380, 76006), (427, 67640), (445, 64904), (488, 59185), (532, 54290), (610, 47348), (623, 46360), (665, 43432), (712, 40565), (760, 38003), (854, 33820), (890, 32452), (1064, 27145), (1159, 24920), (1220, 23674), (1246, 23180), (1330, 21716), (1691, 17080), (1708, 16910), (1780, 16226), (2135, 13528), (2318, 12460), (2440, 11837), (2492, 11590), (2660, 10858), (3115, 9272), (3382, 8540), (3416, 8455), (3560, 8113), (4270, 6764), (4636, 6230), (4984, 5795), (5320, 5429)]