19969560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 192

約数和(自身を含む): 74299680

約数和(自身を除く): 54330120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 51, 52, 60, 65, 68, 72, 78, 85, 90, 102, 104, 117, 120, 130, 136, 153, 156, 170, 180, 195, 204, 221, 234, 251, 255, 260, 306, 312, 340, 360, 390, 408, 442, 468, 502, 510, 520, 585, 612, 663, 680, 753, 765, 780, 884, 936, 1004, 1020, 1105, 1170, 1224, 1255, 1326, 1506, 1530, 1560, 1768, 1989, 2008, 2040, 2210, 2259, 2340, 2510, 2652, 3012, 3060, 3263, 3315, 3765, 3978, 4267, 4420, 4518, 4680, 5020, 5304, 6024, 6120, 6526, 6630, 7530, 7956, 8534, 8840, 9036, 9789, 9945, 10040, 11295, 12801, 13052, 13260, 15060, 15912, 16315, 17068, 18072, 19578, 19890, 21335, 22590, 25602, 26104, 26520, 29367, 30120, 32630, 34136, 38403, 39156, 39780, 42670, 45180, 48945, 51204, 55471, 58734, 64005, 65260, 76806, 78312, 79560, 85340, 90360, 97890, 102408, 110942, 117468, 128010, 130520, 146835, 153612, 166413, 170680, 192015, 195780, 221884, 234936, 256020, 277355, 293670, 307224, 332826, 384030, 391560, 443768, 499239, 512040, 554710, 587340, 665652, 768060, 832065, 998478, 1109420, 1174680, 1331304, 1536120, 1664130, 1996956, 2218840, 2496195, 3328260, 3993912, 4992390, 6656520, 9984780, 19969560]

約数ペア:

[(1, 19969560), (2, 9984780), (3, 6656520), (4, 4992390), (5, 3993912), (6, 3328260), (8, 2496195), (9, 2218840), (10, 1996956), (12, 1664130), (13, 1536120), (15, 1331304), (17, 1174680), (18, 1109420), (20, 998478), (24, 832065), (26, 768060), (30, 665652), (34, 587340), (36, 554710), (39, 512040), (40, 499239), (45, 443768), (51, 391560), (52, 384030), (60, 332826), (65, 307224), (68, 293670), (72, 277355), (78, 256020), (85, 234936), (90, 221884), (102, 195780), (104, 192015), (117, 170680), (120, 166413), (130, 153612), (136, 146835), (153, 130520), (156, 128010), (170, 117468), (180, 110942), (195, 102408), (204, 97890), (221, 90360), (234, 85340), (251, 79560), (255, 78312), (260, 76806), (306, 65260), (312, 64005), (340, 58734), (360, 55471), (390, 51204), (408, 48945), (442, 45180), (468, 42670), (502, 39780), (510, 39156), (520, 38403), (585, 34136), (612, 32630), (663, 30120), (680, 29367), (753, 26520), (765, 26104), (780, 25602), (884, 22590), (936, 21335), (1004, 19890), (1020, 19578), (1105, 18072), (1170, 17068), (1224, 16315), (1255, 15912), (1326, 15060), (1506, 13260), (1530, 13052), (1560, 12801), (1768, 11295), (1989, 10040), (2008, 9945), (2040, 9789), (2210, 9036), (2259, 8840), (2340, 8534), (2510, 7956), (2652, 7530), (3012, 6630), (3060, 6526), (3263, 6120), (3315, 6024), (3765, 5304), (3978, 5020), (4267, 4680), (4420, 4518)]