77780500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:410

約数の個数: 96

約数和(自身を含む): 197503488

約数和(自身を除く): 119722988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 125, 140, 142, 175, 250, 284, 313, 350, 355, 497, 500, 626, 700, 710, 875, 994, 1252, 1420, 1565, 1750, 1775, 1988, 2191, 2485, 3130, 3500, 3550, 4382, 4970, 6260, 7100, 7825, 8764, 8875, 9940, 10955, 12425, 15650, 17750, 21910, 22223, 24850, 31300, 35500, 39125, 43820, 44446, 49700, 54775, 62125, 78250, 88892, 109550, 111115, 124250, 155561, 156500, 219100, 222230, 248500, 273875, 311122, 444460, 547750, 555575, 622244, 777805, 1095500, 1111150, 1555610, 2222300, 2777875, 3111220, 3889025, 5555750, 7778050, 11111500, 15556100, 19445125, 38890250, 77780500]

約数ペア:

[(1, 77780500), (2, 38890250), (4, 19445125), (5, 15556100), (7, 11111500), (10, 7778050), (14, 5555750), (20, 3889025), (25, 3111220), (28, 2777875), (35, 2222300), (50, 1555610), (70, 1111150), (71, 1095500), (100, 777805), (125, 622244), (140, 555575), (142, 547750), (175, 444460), (250, 311122), (284, 273875), (313, 248500), (350, 222230), (355, 219100), (497, 156500), (500, 155561), (626, 124250), (700, 111115), (710, 109550), (875, 88892), (994, 78250), (1252, 62125), (1420, 54775), (1565, 49700), (1750, 44446), (1775, 43820), (1988, 39125), (2191, 35500), (2485, 31300), (3130, 24850), (3500, 22223), (3550, 21910), (4382, 17750), (4970, 15650), (6260, 12425), (7100, 10955), (7825, 9940), (8764, 8875)]