20328360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 128

約数和(自身を含む): 66890880

約数和(自身を除く): 46562520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 83, 104, 120, 130, 156, 157, 166, 195, 249, 260, 312, 314, 332, 390, 415, 471, 498, 520, 628, 664, 780, 785, 830, 942, 996, 1079, 1245, 1256, 1560, 1570, 1660, 1884, 1992, 2041, 2158, 2355, 2490, 3140, 3237, 3320, 3768, 4082, 4316, 4710, 4980, 5395, 6123, 6280, 6474, 8164, 8632, 9420, 9960, 10205, 10790, 12246, 12948, 13031, 16185, 16328, 18840, 20410, 21580, 24492, 25896, 26062, 30615, 32370, 39093, 40820, 43160, 48984, 52124, 61230, 64740, 65155, 78186, 81640, 104248, 122460, 129480, 130310, 156372, 169403, 195465, 244920, 260620, 312744, 338806, 390930, 508209, 521240, 677612, 781860, 847015, 1016418, 1355224, 1563720, 1694030, 2032836, 2541045, 3388060, 4065672, 5082090, 6776120, 10164180, 20328360]

約数ペア:

[(1, 20328360), (2, 10164180), (3, 6776120), (4, 5082090), (5, 4065672), (6, 3388060), (8, 2541045), (10, 2032836), (12, 1694030), (13, 1563720), (15, 1355224), (20, 1016418), (24, 847015), (26, 781860), (30, 677612), (39, 521240), (40, 508209), (52, 390930), (60, 338806), (65, 312744), (78, 260620), (83, 244920), (104, 195465), (120, 169403), (130, 156372), (156, 130310), (157, 129480), (166, 122460), (195, 104248), (249, 81640), (260, 78186), (312, 65155), (314, 64740), (332, 61230), (390, 52124), (415, 48984), (471, 43160), (498, 40820), (520, 39093), (628, 32370), (664, 30615), (780, 26062), (785, 25896), (830, 24492), (942, 21580), (996, 20410), (1079, 18840), (1245, 16328), (1256, 16185), (1560, 13031), (1570, 12948), (1660, 12246), (1884, 10790), (1992, 10205), (2041, 9960), (2158, 9420), (2355, 8632), (2490, 8164), (3140, 6474), (3237, 6280), (3320, 6123), (3768, 5395), (4082, 4980), (4316, 4710)]