19838520

素因数分解:

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

素因数の和:196

約数の個数: 192

約数和(自身を含む): 72465120

約数和(自身を除く): 52626600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 157, 162, 180, 195, 216, 234, 243, 260, 270, 312, 314, 324, 351, 360, 390, 405, 468, 471, 486, 520, 540, 585, 628, 648, 702, 780, 785, 810, 936, 942, 972, 1053, 1080, 1170, 1215, 1256, 1404, 1413, 1560, 1570, 1620, 1755, 1884, 1944, 2041, 2106, 2340, 2355, 2430, 2808, 2826, 3140, 3159, 3240, 3510, 3768, 4082, 4212, 4239, 4680, 4710, 4860, 5265, 5652, 6123, 6280, 6318, 7020, 7065, 8164, 8424, 8478, 9420, 9720, 10205, 10530, 11304, 12246, 12636, 12717, 14040, 14130, 15795, 16328, 16956, 18369, 18840, 20410, 21060, 21195, 24492, 25272, 25434, 28260, 30615, 31590, 33912, 36738, 38151, 40820, 42120, 42390, 48984, 50868, 55107, 56520, 61230, 63180, 63585, 73476, 76302, 81640, 84780, 91845, 101736, 110214, 122460, 126360, 127170, 146952, 152604, 165321, 169560, 183690, 190755, 220428, 244920, 254340, 275535, 305208, 330642, 367380, 381510, 440856, 495963, 508680, 551070, 661284, 734760, 763020, 826605, 991926, 1102140, 1322568, 1526040, 1653210, 1983852, 2204280, 2479815, 3306420, 3967704, 4959630, 6612840, 9919260, 19838520]

約数ペア:

[(1, 19838520), (2, 9919260), (3, 6612840), (4, 4959630), (5, 3967704), (6, 3306420), (8, 2479815), (9, 2204280), (10, 1983852), (12, 1653210), (13, 1526040), (15, 1322568), (18, 1102140), (20, 991926), (24, 826605), (26, 763020), (27, 734760), (30, 661284), (36, 551070), (39, 508680), (40, 495963), (45, 440856), (52, 381510), (54, 367380), (60, 330642), (65, 305208), (72, 275535), (78, 254340), (81, 244920), (90, 220428), (104, 190755), (108, 183690), (117, 169560), (120, 165321), (130, 152604), (135, 146952), (156, 127170), (157, 126360), (162, 122460), (180, 110214), (195, 101736), (216, 91845), (234, 84780), (243, 81640), (260, 76302), (270, 73476), (312, 63585), (314, 63180), (324, 61230), (351, 56520), (360, 55107), (390, 50868), (405, 48984), (468, 42390), (471, 42120), (486, 40820), (520, 38151), (540, 36738), (585, 33912), (628, 31590), (648, 30615), (702, 28260), (780, 25434), (785, 25272), (810, 24492), (936, 21195), (942, 21060), (972, 20410), (1053, 18840), (1080, 18369), (1170, 16956), (1215, 16328), (1256, 15795), (1404, 14130), (1413, 14040), (1560, 12717), (1570, 12636), (1620, 12246), (1755, 11304), (1884, 10530), (1944, 10205), (2041, 9720), (2106, 9420), (2340, 8478), (2355, 8424), (2430, 8164), (2808, 7065), (2826, 7020), (3140, 6318), (3159, 6280), (3240, 6123), (3510, 5652), (3768, 5265), (4082, 4860), (4212, 4710), (4239, 4680)]