255380480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1665

約数の個数: 88

約数和(自身を含む): 632768640

約数和(自身を除く): 377388160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1609, 1984, 2480, 2560, 3218, 3968, 4960, 5120, 6436, 7936, 8045, 9920, 12872, 15872, 16090, 19840, 25744, 31744, 32180, 39680, 49879, 51488, 64360, 79360, 99758, 102976, 128720, 158720, 199516, 205952, 249395, 257440, 399032, 411904, 498790, 514880, 798064, 823808, 997580, 1029760, 1596128, 1647616, 1995160, 2059520, 3192256, 3990320, 4119040, 6384512, 7980640, 8238080, 12769024, 15961280, 25538048, 31922560, 51076096, 63845120, 127690240, 255380480]

約数ペア:

[(1, 255380480), (2, 127690240), (4, 63845120), (5, 51076096), (8, 31922560), (10, 25538048), (16, 15961280), (20, 12769024), (31, 8238080), (32, 7980640), (40, 6384512), (62, 4119040), (64, 3990320), (80, 3192256), (124, 2059520), (128, 1995160), (155, 1647616), (160, 1596128), (248, 1029760), (256, 997580), (310, 823808), (320, 798064), (496, 514880), (512, 498790), (620, 411904), (640, 399032), (992, 257440), (1024, 249395), (1240, 205952), (1280, 199516), (1609, 158720), (1984, 128720), (2480, 102976), (2560, 99758), (3218, 79360), (3968, 64360), (4960, 51488), (5120, 49879), (6436, 39680), (7936, 32180), (8045, 31744), (9920, 25744), (12872, 19840), (15872, 16090)]