127690240

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1663

約数の個数: 80

約数和(自身を含む): 316229760

約数和(自身を除く): 188539520

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, 1240, 1280, 1609, 1984, 2480, 2560, 3218, 3968, 4960, 6436, 7936, 8045, 9920, 12872, 15872, 16090, 19840, 25744, 32180, 39680, 49879, 51488, 64360, 79360, 99758, 102976, 128720, 199516, 205952, 249395, 257440, 399032, 411904, 498790, 514880, 798064, 823808, 997580, 1029760, 1596128, 1995160, 2059520, 3192256, 3990320, 4119040, 6384512, 7980640, 12769024, 15961280, 25538048, 31922560, 63845120, 127690240]

約数ペア:

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