51921280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2617}}^1$

素因数の和:2667

約数の個数: 64

約数和(自身を含む): 128177280

約数和(自身を除く): 76256000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 2617, 3968, 4960, 5234, 9920, 10468, 13085, 19840, 20936, 26170, 41872, 52340, 81127, 83744, 104680, 162254, 167488, 209360, 324508, 334976, 405635, 418720, 649016, 811270, 837440, 1298032, 1622540, 1674880, 2596064, 3245080, 5192128, 6490160, 10384256, 12980320, 25960640, 51921280]

約数ペア:

[(1, 51921280), (2, 25960640), (4, 12980320), (5, 10384256), (8, 6490160), (10, 5192128), (16, 3245080), (20, 2596064), (31, 1674880), (32, 1622540), (40, 1298032), (62, 837440), (64, 811270), (80, 649016), (124, 418720), (128, 405635), (155, 334976), (160, 324508), (248, 209360), (310, 167488), (320, 162254), (496, 104680), (620, 83744), (640, 81127), (992, 52340), (1240, 41872), (1984, 26170), (2480, 20936), (2617, 19840), (3968, 13085), (4960, 10468), (5234, 9920)]