28238288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:759

約数の個数: 40

約数和(自身を含む): 59241000

約数和(自身を除く): 31002712

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 349, 389, 698, 778, 1396, 1556, 2792, 3112, 4537, 5057, 5584, 6224, 9074, 10114, 18148, 20228, 36296, 40456, 72592, 80912, 135761, 271522, 543044, 1086088, 1764893, 2172176, 3529786, 7059572, 14119144, 28238288]

約数ペア:

[(1, 28238288), (2, 14119144), (4, 7059572), (8, 3529786), (13, 2172176), (16, 1764893), (26, 1086088), (52, 543044), (104, 271522), (208, 135761), (349, 80912), (389, 72592), (698, 40456), (778, 36296), (1396, 20228), (1556, 18148), (2792, 10114), (3112, 9074), (4537, 6224), (5057, 5584)]