2778880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 7211232

約数和(自身を除く): 4432352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 167, 208, 256, 260, 320, 334, 416, 520, 640, 668, 832, 835, 1040, 1280, 1336, 1664, 1670, 2080, 2171, 2672, 3328, 3340, 4160, 4342, 5344, 6680, 8320, 8684, 10688, 10855, 13360, 16640, 17368, 21376, 21710, 26720, 34736, 42752, 43420, 53440, 69472, 86840, 106880, 138944, 173680, 213760, 277888, 347360, 555776, 694720, 1389440, 2778880]

約数ペア:

[(1, 2778880), (2, 1389440), (4, 694720), (5, 555776), (8, 347360), (10, 277888), (13, 213760), (16, 173680), (20, 138944), (26, 106880), (32, 86840), (40, 69472), (52, 53440), (64, 43420), (65, 42752), (80, 34736), (104, 26720), (128, 21710), (130, 21376), (160, 17368), (167, 16640), (208, 13360), (256, 10855), (260, 10688), (320, 8684), (334, 8320), (416, 6680), (520, 5344), (640, 4342), (668, 4160), (832, 3340), (835, 3328), (1040, 2672), (1280, 2171), (1336, 2080), (1664, 1670)]