813888940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^3\times {\mathrm{349}}^1$

素因数の和:432

約数の個数: 96

約数和(自身を含む): 1915704000

約数和(自身を除く): 1101815060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 349, 361, 380, 646, 698, 722, 1292, 1396, 1444, 1615, 1745, 1805, 3230, 3490, 3610, 5933, 6137, 6460, 6631, 6859, 6980, 7220, 11866, 12274, 13262, 13718, 23732, 24548, 26524, 27436, 29665, 30685, 33155, 34295, 59330, 61370, 66310, 68590, 112727, 116603, 118660, 122740, 125989, 132620, 137180, 225454, 233206, 251978, 450908, 466412, 503956, 563635, 583015, 629945, 1127270, 1166030, 1259890, 2141813, 2254540, 2332060, 2393791, 2519780, 4283626, 4787582, 8567252, 9575164, 10709065, 11968955, 21418130, 23937910, 40694447, 42836260, 47875820, 81388894, 162777788, 203472235, 406944470, 813888940]

約数ペア:

[(1, 813888940), (2, 406944470), (4, 203472235), (5, 162777788), (10, 81388894), (17, 47875820), (19, 42836260), (20, 40694447), (34, 23937910), (38, 21418130), (68, 11968955), (76, 10709065), (85, 9575164), (95, 8567252), (170, 4787582), (190, 4283626), (323, 2519780), (340, 2393791), (349, 2332060), (361, 2254540), (380, 2141813), (646, 1259890), (698, 1166030), (722, 1127270), (1292, 629945), (1396, 583015), (1444, 563635), (1615, 503956), (1745, 466412), (1805, 450908), (3230, 251978), (3490, 233206), (3610, 225454), (5933, 137180), (6137, 132620), (6460, 125989), (6631, 122740), (6859, 118660), (6980, 116603), (7220, 112727), (11866, 68590), (12274, 66310), (13262, 61370), (13718, 59330), (23732, 34295), (24548, 33155), (26524, 30685), (27436, 29665)]