242464640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:173

約数の個数: 192

約数和(自身を含む): 664191360

約数和(自身を除く): 421726720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 101, 110, 121, 124, 128, 155, 160, 176, 202, 220, 242, 248, 310, 320, 341, 352, 404, 440, 484, 496, 505, 605, 620, 640, 682, 704, 808, 880, 968, 992, 1010, 1111, 1210, 1240, 1364, 1408, 1616, 1705, 1760, 1936, 1984, 2020, 2222, 2420, 2480, 2728, 3131, 3232, 3410, 3520, 3751, 3872, 3968, 4040, 4444, 4840, 4960, 5456, 5555, 6262, 6464, 6820, 7040, 7502, 7744, 8080, 8888, 9680, 9920, 10912, 11110, 12221, 12524, 12928, 13640, 15004, 15488, 15655, 16160, 17776, 18755, 19360, 19840, 21824, 22220, 24442, 25048, 27280, 30008, 31310, 32320, 34441, 35552, 37510, 38720, 43648, 44440, 48884, 50096, 54560, 60016, 61105, 62620, 64640, 68882, 71104, 75020, 77440, 88880, 97768, 100192, 109120, 120032, 122210, 125240, 137764, 142208, 150040, 172205, 177760, 195536, 200384, 218240, 240064, 244420, 250480, 275528, 300080, 344410, 355520, 378851, 391072, 400768, 480128, 488840, 500960, 551056, 600160, 688820, 711040, 757702, 782144, 977680, 1001920, 1102112, 1200320, 1377640, 1515404, 1564288, 1894255, 1955360, 2003840, 2204224, 2400640, 2755280, 3030808, 3788510, 3910720, 4408448, 5510560, 6061616, 7577020, 7821440, 11021120, 12123232, 15154040, 22042240, 24246464, 30308080, 48492928, 60616160, 121232320, 242464640]

約数ペア:

[(1, 242464640), (2, 121232320), (4, 60616160), (5, 48492928), (8, 30308080), (10, 24246464), (11, 22042240), (16, 15154040), (20, 12123232), (22, 11021120), (31, 7821440), (32, 7577020), (40, 6061616), (44, 5510560), (55, 4408448), (62, 3910720), (64, 3788510), (80, 3030808), (88, 2755280), (101, 2400640), (110, 2204224), (121, 2003840), (124, 1955360), (128, 1894255), (155, 1564288), (160, 1515404), (176, 1377640), (202, 1200320), (220, 1102112), (242, 1001920), (248, 977680), (310, 782144), (320, 757702), (341, 711040), (352, 688820), (404, 600160), (440, 551056), (484, 500960), (496, 488840), (505, 480128), (605, 400768), (620, 391072), (640, 378851), (682, 355520), (704, 344410), (808, 300080), (880, 275528), (968, 250480), (992, 244420), (1010, 240064), (1111, 218240), (1210, 200384), (1240, 195536), (1364, 177760), (1408, 172205), (1616, 150040), (1705, 142208), (1760, 137764), (1936, 125240), (1984, 122210), (2020, 120032), (2222, 109120), (2420, 100192), (2480, 97768), (2728, 88880), (3131, 77440), (3232, 75020), (3410, 71104), (3520, 68882), (3751, 64640), (3872, 62620), (3968, 61105), (4040, 60016), (4444, 54560), (4840, 50096), (4960, 48884), (5456, 44440), (5555, 43648), (6262, 38720), (6464, 37510), (6820, 35552), (7040, 34441), (7502, 32320), (7744, 31310), (8080, 30008), (8888, 27280), (9680, 25048), (9920, 24442), (10912, 22220), (11110, 21824), (12221, 19840), (12524, 19360), (12928, 18755), (13640, 17776), (15004, 16160), (15488, 15655)]