20346940960

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{3359}}^1$

素因数の和:3539

約数の個数: 144

約数和(自身を含む): 51468721920

約数和(自身を除く): 31121780960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 131, 136, 160, 170, 262, 272, 289, 340, 524, 544, 578, 655, 680, 1048, 1156, 1310, 1360, 1445, 2096, 2227, 2312, 2620, 2720, 2890, 3359, 4192, 4454, 4624, 5240, 5780, 6718, 8908, 9248, 10480, 11135, 11560, 13436, 16795, 17816, 20960, 22270, 23120, 26872, 33590, 35632, 37859, 44540, 46240, 53744, 57103, 67180, 71264, 75718, 89080, 107488, 114206, 134360, 151436, 178160, 189295, 228412, 268720, 285515, 302872, 356320, 378590, 440029, 456824, 537440, 571030, 605744, 757180, 880058, 913648, 970751, 1142060, 1211488, 1514360, 1760116, 1827296, 1941502, 2200145, 2284120, 3028720, 3520232, 3883004, 4400290, 4568240, 4853755, 6057440, 7040464, 7480493, 7766008, 8800580, 9136480, 9707510, 14080928, 14960986, 15532016, 17601160, 19415020, 29921972, 31064032, 35202320, 37402465, 38830040, 59843944, 70404640, 74804930, 77660080, 119687888, 127168381, 149609860, 155320160, 239375776, 254336762, 299219720, 508673524, 598439440, 635841905, 1017347048, 1196878880, 1271683810, 2034694096, 2543367620, 4069388192, 5086735240, 10173470480, 20346940960]

約数ペア:

[(1, 20346940960), (2, 10173470480), (4, 5086735240), (5, 4069388192), (8, 2543367620), (10, 2034694096), (16, 1271683810), (17, 1196878880), (20, 1017347048), (32, 635841905), (34, 598439440), (40, 508673524), (68, 299219720), (80, 254336762), (85, 239375776), (131, 155320160), (136, 149609860), (160, 127168381), (170, 119687888), (262, 77660080), (272, 74804930), (289, 70404640), (340, 59843944), (524, 38830040), (544, 37402465), (578, 35202320), (655, 31064032), (680, 29921972), (1048, 19415020), (1156, 17601160), (1310, 15532016), (1360, 14960986), (1445, 14080928), (2096, 9707510), (2227, 9136480), (2312, 8800580), (2620, 7766008), (2720, 7480493), (2890, 7040464), (3359, 6057440), (4192, 4853755), (4454, 4568240), (4624, 4400290), (5240, 3883004), (5780, 3520232), (6718, 3028720), (8908, 2284120), (9248, 2200145), (10480, 1941502), (11135, 1827296), (11560, 1760116), (13436, 1514360), (16795, 1211488), (17816, 1142060), (20960, 970751), (22270, 913648), (23120, 880058), (26872, 757180), (33590, 605744), (35632, 571030), (37859, 537440), (44540, 456824), (46240, 440029), (53744, 378590), (57103, 356320), (67180, 302872), (71264, 285515), (75718, 268720), (89080, 228412), (107488, 189295), (114206, 178160), (134360, 151436)]