217820260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1619}}^1$

素因数の和:1697

約数の個数: 72

約数和(自身を含む): 540509760

約数和(自身を除く): 322689500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 961, 1085, 1619, 1922, 2170, 3238, 3844, 4340, 4805, 6476, 6727, 8095, 9610, 11333, 13454, 16190, 19220, 22666, 26908, 32380, 33635, 45332, 50189, 56665, 67270, 100378, 113330, 134540, 200756, 226660, 250945, 351323, 501890, 702646, 1003780, 1405292, 1555859, 1756615, 3111718, 3513230, 6223436, 7026460, 7779295, 10891013, 15558590, 21782026, 31117180, 43564052, 54455065, 108910130, 217820260]

約数ペア:

[(1, 217820260), (2, 108910130), (4, 54455065), (5, 43564052), (7, 31117180), (10, 21782026), (14, 15558590), (20, 10891013), (28, 7779295), (31, 7026460), (35, 6223436), (62, 3513230), (70, 3111718), (124, 1756615), (140, 1555859), (155, 1405292), (217, 1003780), (310, 702646), (434, 501890), (620, 351323), (868, 250945), (961, 226660), (1085, 200756), (1619, 134540), (1922, 113330), (2170, 100378), (3238, 67270), (3844, 56665), (4340, 50189), (4805, 45332), (6476, 33635), (6727, 32380), (8095, 26908), (9610, 22666), (11333, 19220), (13454, 16190)]