278176640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1$

素因数の和:2060

約数の個数: 128

約数和(自身を含む): 784926720

約数和(自身を除く): 506750080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2003, 2170, 2240, 2480, 3472, 3968, 4006, 4340, 4480, 4960, 6944, 8012, 8680, 9920, 10015, 13888, 14021, 16024, 17360, 19840, 20030, 27776, 28042, 32048, 34720, 40060, 56084, 62093, 64096, 69440, 70105, 80120, 112168, 124186, 128192, 138880, 140210, 160240, 224336, 248372, 256384, 280420, 310465, 320480, 434651, 448672, 496744, 560840, 620930, 640960, 869302, 897344, 993488, 1121680, 1241860, 1281920, 1738604, 1794688, 1986976, 2173255, 2243360, 2483720, 3477208, 3973952, 4346510, 4486720, 4967440, 6954416, 7947904, 8693020, 8973440, 9934880, 13908832, 17386040, 19869760, 27817664, 34772080, 39739520, 55635328, 69544160, 139088320, 278176640]

約数ペア:

[(1, 278176640), (2, 139088320), (4, 69544160), (5, 55635328), (7, 39739520), (8, 34772080), (10, 27817664), (14, 19869760), (16, 17386040), (20, 13908832), (28, 9934880), (31, 8973440), (32, 8693020), (35, 7947904), (40, 6954416), (56, 4967440), (62, 4486720), (64, 4346510), (70, 3973952), (80, 3477208), (112, 2483720), (124, 2243360), (128, 2173255), (140, 1986976), (155, 1794688), (160, 1738604), (217, 1281920), (224, 1241860), (248, 1121680), (280, 993488), (310, 897344), (320, 869302), (434, 640960), (448, 620930), (496, 560840), (560, 496744), (620, 448672), (640, 434651), (868, 320480), (896, 310465), (992, 280420), (1085, 256384), (1120, 248372), (1240, 224336), (1736, 160240), (1984, 140210), (2003, 138880), (2170, 128192), (2240, 124186), (2480, 112168), (3472, 80120), (3968, 70105), (4006, 69440), (4340, 64096), (4480, 62093), (4960, 56084), (6944, 40060), (8012, 34720), (8680, 32048), (9920, 28042), (10015, 27776), (13888, 20030), (14021, 19840), (16024, 17360)]