128155520

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11779}}^1$

素因数の和:11815

約数の個数: 64

約数和(自身を含む): 324421200

約数和(自身を除く): 196265680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 11779, 23558, 47116, 58895, 94232, 117790, 188464, 200243, 235580, 376928, 400486, 471160, 753856, 800972, 942320, 1001215, 1507712, 1601944, 1884640, 2002430, 3203888, 3769280, 4004860, 6407776, 7538560, 8009720, 12815552, 16019440, 25631104, 32038880, 64077760, 128155520]

約数ペア:

[(1, 128155520), (2, 64077760), (4, 32038880), (5, 25631104), (8, 16019440), (10, 12815552), (16, 8009720), (17, 7538560), (20, 6407776), (32, 4004860), (34, 3769280), (40, 3203888), (64, 2002430), (68, 1884640), (80, 1601944), (85, 1507712), (128, 1001215), (136, 942320), (160, 800972), (170, 753856), (272, 471160), (320, 400486), (340, 376928), (544, 235580), (640, 200243), (680, 188464), (1088, 117790), (1360, 94232), (2176, 58895), (2720, 47116), (5440, 23558), (10880, 11779)]