654720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:64

約数の個数: 128

約数和(自身を含む): 2350080

約数和(自身を除く): 1695360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 32, 33, 40, 44, 48, 55, 60, 62, 64, 66, 80, 88, 93, 96, 110, 120, 124, 128, 132, 155, 160, 165, 176, 186, 192, 220, 240, 248, 264, 310, 320, 330, 341, 352, 372, 384, 440, 465, 480, 496, 528, 620, 640, 660, 682, 704, 744, 880, 930, 960, 992, 1023, 1056, 1240, 1320, 1364, 1408, 1488, 1705, 1760, 1860, 1920, 1984, 2046, 2112, 2480, 2640, 2728, 2976, 3410, 3520, 3720, 3968, 4092, 4224, 4960, 5115, 5280, 5456, 5952, 6820, 7040, 7440, 8184, 9920, 10230, 10560, 10912, 11904, 13640, 14880, 16368, 19840, 20460, 21120, 21824, 27280, 29760, 32736, 40920, 43648, 54560, 59520, 65472, 81840, 109120, 130944, 163680, 218240, 327360, 654720]

約数ペア:

[(1, 654720), (2, 327360), (3, 218240), (4, 163680), (5, 130944), (6, 109120), (8, 81840), (10, 65472), (11, 59520), (12, 54560), (15, 43648), (16, 40920), (20, 32736), (22, 29760), (24, 27280), (30, 21824), (31, 21120), (32, 20460), (33, 19840), (40, 16368), (44, 14880), (48, 13640), (55, 11904), (60, 10912), (62, 10560), (64, 10230), (66, 9920), (80, 8184), (88, 7440), (93, 7040), (96, 6820), (110, 5952), (120, 5456), (124, 5280), (128, 5115), (132, 4960), (155, 4224), (160, 4092), (165, 3968), (176, 3720), (186, 3520), (192, 3410), (220, 2976), (240, 2728), (248, 2640), (264, 2480), (310, 2112), (320, 2046), (330, 1984), (341, 1920), (352, 1860), (372, 1760), (384, 1705), (440, 1488), (465, 1408), (480, 1364), (496, 1320), (528, 1240), (620, 1056), (640, 1023), (660, 992), (682, 960), (704, 930), (744, 880)]