20149380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 66253824

約数和(自身を除く): 46104444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 157, 180, 186, 207, 230, 276, 279, 310, 314, 345, 372, 414, 460, 465, 471, 558, 620, 628, 690, 713, 785, 828, 930, 942, 1035, 1116, 1380, 1395, 1413, 1426, 1570, 1860, 1884, 2070, 2139, 2355, 2790, 2826, 2852, 3140, 3565, 3611, 4140, 4278, 4710, 4867, 5580, 5652, 6417, 7065, 7130, 7222, 8556, 9420, 9734, 10695, 10833, 12834, 14130, 14260, 14444, 14601, 18055, 19468, 21390, 21666, 24335, 25668, 28260, 29202, 32085, 32499, 36110, 42780, 43332, 43803, 48670, 54165, 58404, 64170, 64998, 72220, 73005, 87606, 97340, 108330, 111941, 128340, 129996, 146010, 162495, 175212, 216660, 219015, 223882, 292020, 324990, 335823, 438030, 447764, 559705, 649980, 671646, 876060, 1007469, 1119410, 1343292, 1679115, 2014938, 2238820, 3358230, 4029876, 5037345, 6716460, 10074690, 20149380]

約数ペア:

[(1, 20149380), (2, 10074690), (3, 6716460), (4, 5037345), (5, 4029876), (6, 3358230), (9, 2238820), (10, 2014938), (12, 1679115), (15, 1343292), (18, 1119410), (20, 1007469), (23, 876060), (30, 671646), (31, 649980), (36, 559705), (45, 447764), (46, 438030), (60, 335823), (62, 324990), (69, 292020), (90, 223882), (92, 219015), (93, 216660), (115, 175212), (124, 162495), (138, 146010), (155, 129996), (157, 128340), (180, 111941), (186, 108330), (207, 97340), (230, 87606), (276, 73005), (279, 72220), (310, 64998), (314, 64170), (345, 58404), (372, 54165), (414, 48670), (460, 43803), (465, 43332), (471, 42780), (558, 36110), (620, 32499), (628, 32085), (690, 29202), (713, 28260), (785, 25668), (828, 24335), (930, 21666), (942, 21390), (1035, 19468), (1116, 18055), (1380, 14601), (1395, 14444), (1413, 14260), (1426, 14130), (1570, 12834), (1860, 10833), (1884, 10695), (2070, 9734), (2139, 9420), (2355, 8556), (2790, 7222), (2826, 7130), (2852, 7065), (3140, 6417), (3565, 5652), (3611, 5580), (4140, 4867), (4278, 4710)]