65878540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5171}}^1$

素因数の和:5207

約数の個数: 72

約数和(自身を含む): 173344752

約数和(自身を除く): 107466212

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 5171, 6370, 10342, 12740, 20684, 25855, 36197, 51710, 67223, 72394, 103420, 134446, 144788, 180985, 253379, 268892, 336115, 361970, 470561, 506758, 672230, 723940, 941122, 1013516, 1266895, 1344460, 1882244, 2352805, 2533790, 3293927, 4705610, 5067580, 6587854, 9411220, 13175708, 16469635, 32939270, 65878540]

約数ペア:

[(1, 65878540), (2, 32939270), (4, 16469635), (5, 13175708), (7, 9411220), (10, 6587854), (13, 5067580), (14, 4705610), (20, 3293927), (26, 2533790), (28, 2352805), (35, 1882244), (49, 1344460), (52, 1266895), (65, 1013516), (70, 941122), (91, 723940), (98, 672230), (130, 506758), (140, 470561), (182, 361970), (196, 336115), (245, 268892), (260, 253379), (364, 180985), (455, 144788), (490, 134446), (637, 103420), (910, 72394), (980, 67223), (1274, 51710), (1820, 36197), (2548, 25855), (3185, 20684), (5171, 12740), (6370, 10342)]