289690226

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:164

約数の個数: 72

約数和(自身を含む): 553906944

約数和(自身を除く): 264216718

約数列:

[1, 2, 7, 14, 19, 31, 38, 43, 62, 86, 133, 217, 266, 301, 361, 434, 589, 602, 722, 817, 1178, 1333, 1634, 1849, 2527, 2666, 3698, 4123, 5054, 5719, 8246, 9331, 11191, 11438, 12943, 15523, 18662, 22382, 25327, 25886, 31046, 35131, 50654, 57319, 70262, 78337, 108661, 114638, 156674, 177289, 217322, 245917, 354578, 401233, 481213, 491834, 667489, 802466, 962426, 1089061, 1334978, 2178122, 3368491, 4672423, 6736982, 7623427, 9344846, 15246854, 20692159, 41384318, 144845113, 289690226]

約数ペア:

[(1, 289690226), (2, 144845113), (7, 41384318), (14, 20692159), (19, 15246854), (31, 9344846), (38, 7623427), (43, 6736982), (62, 4672423), (86, 3368491), (133, 2178122), (217, 1334978), (266, 1089061), (301, 962426), (361, 802466), (434, 667489), (589, 491834), (602, 481213), (722, 401233), (817, 354578), (1178, 245917), (1333, 217322), (1634, 177289), (1849, 156674), (2527, 114638), (2666, 108661), (3698, 78337), (4123, 70262), (5054, 57319), (5719, 50654), (8246, 35131), (9331, 31046), (11191, 25886), (11438, 25327), (12943, 22382), (15523, 18662)]