18799740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 44099460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 239, 276, 285, 342, 345, 380, 414, 437, 460, 478, 570, 684, 690, 717, 828, 855, 874, 956, 1035, 1140, 1195, 1311, 1380, 1434, 1710, 1748, 2070, 2151, 2185, 2390, 2622, 2868, 3420, 3585, 3933, 4140, 4302, 4370, 4541, 4780, 5244, 5497, 6555, 7170, 7866, 8604, 8740, 9082, 10755, 10994, 13110, 13623, 14340, 15732, 16491, 18164, 19665, 21510, 21988, 22705, 26220, 27246, 27485, 32982, 39330, 40869, 43020, 45410, 49473, 54492, 54970, 65964, 68115, 78660, 81738, 82455, 90820, 98946, 104443, 109940, 136230, 163476, 164910, 197892, 204345, 208886, 247365, 272460, 313329, 329820, 408690, 417772, 494730, 522215, 626658, 817380, 939987, 989460, 1044430, 1253316, 1566645, 1879974, 2088860, 3133290, 3759948, 4699935, 6266580, 9399870, 18799740]

約数ペア:

[(1, 18799740), (2, 9399870), (3, 6266580), (4, 4699935), (5, 3759948), (6, 3133290), (9, 2088860), (10, 1879974), (12, 1566645), (15, 1253316), (18, 1044430), (19, 989460), (20, 939987), (23, 817380), (30, 626658), (36, 522215), (38, 494730), (45, 417772), (46, 408690), (57, 329820), (60, 313329), (69, 272460), (76, 247365), (90, 208886), (92, 204345), (95, 197892), (114, 164910), (115, 163476), (138, 136230), (171, 109940), (180, 104443), (190, 98946), (207, 90820), (228, 82455), (230, 81738), (239, 78660), (276, 68115), (285, 65964), (342, 54970), (345, 54492), (380, 49473), (414, 45410), (437, 43020), (460, 40869), (478, 39330), (570, 32982), (684, 27485), (690, 27246), (717, 26220), (828, 22705), (855, 21988), (874, 21510), (956, 19665), (1035, 18164), (1140, 16491), (1195, 15732), (1311, 14340), (1380, 13623), (1434, 13110), (1710, 10994), (1748, 10755), (2070, 9082), (2151, 8740), (2185, 8604), (2390, 7866), (2622, 7170), (2868, 6555), (3420, 5497), (3585, 5244), (3933, 4780), (4140, 4541), (4302, 4370)]