20440160

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:376

約数の個数: 96

約数和(自身を含む): 53851392

約数和(自身を除く): 33411232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 317, 403, 416, 496, 520, 620, 634, 806, 992, 1040, 1240, 1268, 1585, 1612, 2015, 2080, 2480, 2536, 3170, 3224, 4030, 4121, 4960, 5072, 6340, 6448, 8060, 8242, 9827, 10144, 12680, 12896, 16120, 16484, 19654, 20605, 25360, 32240, 32968, 39308, 41210, 49135, 50720, 64480, 65936, 78616, 82420, 98270, 127751, 131872, 157232, 164840, 196540, 255502, 314464, 329680, 393080, 511004, 638755, 659360, 786160, 1022008, 1277510, 1572320, 2044016, 2555020, 4088032, 5110040, 10220080, 20440160]

約数ペア:

[(1, 20440160), (2, 10220080), (4, 5110040), (5, 4088032), (8, 2555020), (10, 2044016), (13, 1572320), (16, 1277510), (20, 1022008), (26, 786160), (31, 659360), (32, 638755), (40, 511004), (52, 393080), (62, 329680), (65, 314464), (80, 255502), (104, 196540), (124, 164840), (130, 157232), (155, 131872), (160, 127751), (208, 98270), (248, 82420), (260, 78616), (310, 65936), (317, 64480), (403, 50720), (416, 49135), (496, 41210), (520, 39308), (620, 32968), (634, 32240), (806, 25360), (992, 20605), (1040, 19654), (1240, 16484), (1268, 16120), (1585, 12896), (1612, 12680), (2015, 10144), (2080, 9827), (2480, 8242), (2536, 8060), (3170, 6448), (3224, 6340), (4030, 5072), (4121, 4960)]