31778560

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 144

約数和(自身を含む): 86681952

約数和(自身を除く): 54903392

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 61, 64, 74, 80, 88, 110, 122, 128, 148, 160, 176, 185, 220, 244, 256, 296, 305, 320, 352, 370, 407, 440, 488, 592, 610, 640, 671, 704, 740, 814, 880, 976, 1184, 1220, 1280, 1342, 1408, 1480, 1628, 1760, 1952, 2035, 2257, 2368, 2440, 2684, 2816, 2960, 3256, 3355, 3520, 3904, 4070, 4514, 4736, 4880, 5368, 5920, 6512, 6710, 7040, 7808, 8140, 9028, 9472, 9760, 10736, 11285, 11840, 13024, 13420, 14080, 15616, 16280, 18056, 19520, 21472, 22570, 23680, 24827, 26048, 26840, 32560, 36112, 39040, 42944, 45140, 47360, 49654, 52096, 53680, 65120, 72224, 78080, 85888, 90280, 99308, 104192, 107360, 124135, 130240, 144448, 171776, 180560, 198616, 214720, 248270, 260480, 288896, 361120, 397232, 429440, 496540, 520960, 577792, 722240, 794464, 858880, 993080, 1444480, 1588928, 1986160, 2888960, 3177856, 3972320, 6355712, 7944640, 15889280, 31778560]

約数ペア:

[(1, 31778560), (2, 15889280), (4, 7944640), (5, 6355712), (8, 3972320), (10, 3177856), (11, 2888960), (16, 1986160), (20, 1588928), (22, 1444480), (32, 993080), (37, 858880), (40, 794464), (44, 722240), (55, 577792), (61, 520960), (64, 496540), (74, 429440), (80, 397232), (88, 361120), (110, 288896), (122, 260480), (128, 248270), (148, 214720), (160, 198616), (176, 180560), (185, 171776), (220, 144448), (244, 130240), (256, 124135), (296, 107360), (305, 104192), (320, 99308), (352, 90280), (370, 85888), (407, 78080), (440, 72224), (488, 65120), (592, 53680), (610, 52096), (640, 49654), (671, 47360), (704, 45140), (740, 42944), (814, 39040), (880, 36112), (976, 32560), (1184, 26840), (1220, 26048), (1280, 24827), (1342, 23680), (1408, 22570), (1480, 21472), (1628, 19520), (1760, 18056), (1952, 16280), (2035, 15616), (2257, 14080), (2368, 13420), (2440, 13024), (2684, 11840), (2816, 11285), (2960, 10736), (3256, 9760), (3355, 9472), (3520, 9028), (3904, 8140), (4070, 7808), (4514, 7040), (4736, 6710), (4880, 6512), (5368, 5920)]