687960

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{13}}^1$

素因数の和:47

約数の個数: 192

約数和(自身を含む): 2872800

約数和(自身を除く): 2184840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 49, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 98, 104, 105, 108, 117, 120, 126, 130, 135, 140, 147, 156, 168, 180, 182, 189, 195, 196, 210, 216, 234, 245, 252, 260, 270, 273, 280, 294, 312, 315, 351, 360, 364, 378, 390, 392, 420, 441, 455, 468, 490, 504, 520, 540, 546, 585, 588, 630, 637, 702, 728, 735, 756, 780, 819, 840, 882, 910, 936, 945, 980, 1080, 1092, 1170, 1176, 1260, 1274, 1323, 1365, 1404, 1470, 1512, 1560, 1638, 1755, 1764, 1820, 1890, 1911, 1960, 2184, 2205, 2340, 2457, 2520, 2548, 2646, 2730, 2808, 2940, 3185, 3276, 3510, 3528, 3640, 3780, 3822, 4095, 4410, 4680, 4914, 5096, 5292, 5460, 5733, 5880, 6370, 6552, 6615, 7020, 7560, 7644, 8190, 8820, 9555, 9828, 10584, 10920, 11466, 12285, 12740, 13230, 14040, 15288, 16380, 17199, 17640, 19110, 19656, 22932, 24570, 25480, 26460, 28665, 32760, 34398, 38220, 45864, 49140, 52920, 57330, 68796, 76440, 85995, 98280, 114660, 137592, 171990, 229320, 343980, 687960]

約数ペア:

[(1, 687960), (2, 343980), (3, 229320), (4, 171990), (5, 137592), (6, 114660), (7, 98280), (8, 85995), (9, 76440), (10, 68796), (12, 57330), (13, 52920), (14, 49140), (15, 45864), (18, 38220), (20, 34398), (21, 32760), (24, 28665), (26, 26460), (27, 25480), (28, 24570), (30, 22932), (35, 19656), (36, 19110), (39, 17640), (40, 17199), (42, 16380), (45, 15288), (49, 14040), (52, 13230), (54, 12740), (56, 12285), (60, 11466), (63, 10920), (65, 10584), (70, 9828), (72, 9555), (78, 8820), (84, 8190), (90, 7644), (91, 7560), (98, 7020), (104, 6615), (105, 6552), (108, 6370), (117, 5880), (120, 5733), (126, 5460), (130, 5292), (135, 5096), (140, 4914), (147, 4680), (156, 4410), (168, 4095), (180, 3822), (182, 3780), (189, 3640), (195, 3528), (196, 3510), (210, 3276), (216, 3185), (234, 2940), (245, 2808), (252, 2730), (260, 2646), (270, 2548), (273, 2520), (280, 2457), (294, 2340), (312, 2205), (315, 2184), (351, 1960), (360, 1911), (364, 1890), (378, 1820), (390, 1764), (392, 1755), (420, 1638), (441, 1560), (455, 1512), (468, 1470), (490, 1404), (504, 1365), (520, 1323), (540, 1274), (546, 1260), (585, 1176), (588, 1170), (630, 1092), (637, 1080), (702, 980), (728, 945), (735, 936), (756, 910), (780, 882), (819, 840)]