21308040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 192

約数和(自身を含む): 77641200

約数和(自身を除く): 56333160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 29, 30, 36, 39, 40, 45, 52, 58, 60, 65, 72, 78, 87, 90, 104, 116, 117, 120, 130, 145, 156, 157, 174, 180, 195, 232, 234, 260, 261, 290, 312, 314, 348, 360, 377, 390, 435, 468, 471, 520, 522, 580, 585, 628, 696, 754, 780, 785, 870, 936, 942, 1044, 1131, 1160, 1170, 1256, 1305, 1413, 1508, 1560, 1570, 1740, 1884, 1885, 2041, 2088, 2262, 2340, 2355, 2610, 2826, 3016, 3140, 3393, 3480, 3768, 3770, 4082, 4524, 4553, 4680, 4710, 5220, 5652, 5655, 6123, 6280, 6786, 7065, 7540, 8164, 9048, 9106, 9420, 10205, 10440, 11304, 11310, 12246, 13572, 13659, 14130, 15080, 16328, 16965, 18212, 18369, 18840, 20410, 22620, 22765, 24492, 27144, 27318, 28260, 30615, 33930, 36424, 36738, 40820, 40977, 45240, 45530, 48984, 54636, 56520, 59189, 61230, 67860, 68295, 73476, 81640, 81954, 91060, 91845, 109272, 118378, 122460, 135720, 136590, 146952, 163908, 177567, 182120, 183690, 204885, 236756, 244920, 273180, 295945, 327816, 355134, 367380, 409770, 473512, 532701, 546360, 591890, 710268, 734760, 819540, 887835, 1065402, 1183780, 1420536, 1639080, 1775670, 2130804, 2367560, 2663505, 3551340, 4261608, 5327010, 7102680, 10654020, 21308040]

約数ペア:

[(1, 21308040), (2, 10654020), (3, 7102680), (4, 5327010), (5, 4261608), (6, 3551340), (8, 2663505), (9, 2367560), (10, 2130804), (12, 1775670), (13, 1639080), (15, 1420536), (18, 1183780), (20, 1065402), (24, 887835), (26, 819540), (29, 734760), (30, 710268), (36, 591890), (39, 546360), (40, 532701), (45, 473512), (52, 409770), (58, 367380), (60, 355134), (65, 327816), (72, 295945), (78, 273180), (87, 244920), (90, 236756), (104, 204885), (116, 183690), (117, 182120), (120, 177567), (130, 163908), (145, 146952), (156, 136590), (157, 135720), (174, 122460), (180, 118378), (195, 109272), (232, 91845), (234, 91060), (260, 81954), (261, 81640), (290, 73476), (312, 68295), (314, 67860), (348, 61230), (360, 59189), (377, 56520), (390, 54636), (435, 48984), (468, 45530), (471, 45240), (520, 40977), (522, 40820), (580, 36738), (585, 36424), (628, 33930), (696, 30615), (754, 28260), (780, 27318), (785, 27144), (870, 24492), (936, 22765), (942, 22620), (1044, 20410), (1131, 18840), (1160, 18369), (1170, 18212), (1256, 16965), (1305, 16328), (1413, 15080), (1508, 14130), (1560, 13659), (1570, 13572), (1740, 12246), (1884, 11310), (1885, 11304), (2041, 10440), (2088, 10205), (2262, 9420), (2340, 9106), (2355, 9048), (2610, 8164), (2826, 7540), (3016, 7065), (3140, 6786), (3393, 6280), (3480, 6123), (3768, 5655), (3770, 5652), (4082, 5220), (4524, 4710), (4553, 4680)]