205440240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1247

約数の個数: 160

約数和(自身を含む): 690598656

約数和(自身を除く): 485158416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 43, 48, 51, 60, 68, 80, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 240, 255, 258, 272, 340, 344, 408, 430, 510, 516, 645, 680, 688, 731, 816, 860, 1020, 1032, 1171, 1290, 1360, 1462, 1720, 2040, 2064, 2193, 2342, 2580, 2924, 3440, 3513, 3655, 4080, 4386, 4684, 5160, 5848, 5855, 7026, 7310, 8772, 9368, 10320, 10965, 11696, 11710, 14052, 14620, 17544, 17565, 18736, 19907, 21930, 23420, 28104, 29240, 35088, 35130, 39814, 43860, 46840, 50353, 56208, 58480, 59721, 70260, 79628, 87720, 93680, 99535, 100706, 119442, 140520, 151059, 159256, 175440, 199070, 201412, 238884, 251765, 281040, 298605, 302118, 318512, 398140, 402824, 477768, 503530, 597210, 604236, 755295, 796280, 805648, 856001, 955536, 1007060, 1194420, 1208472, 1510590, 1592560, 1712002, 2014120, 2388840, 2416944, 2568003, 3021180, 3424004, 4028240, 4280005, 4777680, 5136006, 6042360, 6848008, 8560010, 10272012, 12084720, 12840015, 13696016, 17120020, 20544024, 25680030, 34240040, 41088048, 51360060, 68480080, 102720120, 205440240]

約数ペア:

[(1, 205440240), (2, 102720120), (3, 68480080), (4, 51360060), (5, 41088048), (6, 34240040), (8, 25680030), (10, 20544024), (12, 17120020), (15, 13696016), (16, 12840015), (17, 12084720), (20, 10272012), (24, 8560010), (30, 6848008), (34, 6042360), (40, 5136006), (43, 4777680), (48, 4280005), (51, 4028240), (60, 3424004), (68, 3021180), (80, 2568003), (85, 2416944), (86, 2388840), (102, 2014120), (120, 1712002), (129, 1592560), (136, 1510590), (170, 1208472), (172, 1194420), (204, 1007060), (215, 955536), (240, 856001), (255, 805648), (258, 796280), (272, 755295), (340, 604236), (344, 597210), (408, 503530), (430, 477768), (510, 402824), (516, 398140), (645, 318512), (680, 302118), (688, 298605), (731, 281040), (816, 251765), (860, 238884), (1020, 201412), (1032, 199070), (1171, 175440), (1290, 159256), (1360, 151059), (1462, 140520), (1720, 119442), (2040, 100706), (2064, 99535), (2193, 93680), (2342, 87720), (2580, 79628), (2924, 70260), (3440, 59721), (3513, 58480), (3655, 56208), (4080, 50353), (4386, 46840), (4684, 43860), (5160, 39814), (5848, 35130), (5855, 35088), (7026, 29240), (7310, 28104), (8772, 23420), (9368, 21930), (10320, 19907), (10965, 18736), (11696, 17565), (11710, 17544), (14052, 14620)]