28947490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 63286272

約数和(自身を除く): 34338782

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 653, 682, 715, 806, 1306, 1430, 1705, 2015, 3265, 3410, 4030, 4433, 6530, 7183, 8489, 8866, 14366, 16978, 20243, 22165, 35915, 40486, 42445, 44330, 71830, 84890, 93379, 101215, 186758, 202430, 222673, 263159, 445346, 466895, 526318, 933790, 1113365, 1315795, 2226730, 2631590, 2894749, 5789498, 14473745, 28947490]

約数ペア:

[(1, 28947490), (2, 14473745), (5, 5789498), (10, 2894749), (11, 2631590), (13, 2226730), (22, 1315795), (26, 1113365), (31, 933790), (55, 526318), (62, 466895), (65, 445346), (110, 263159), (130, 222673), (143, 202430), (155, 186758), (286, 101215), (310, 93379), (341, 84890), (403, 71830), (653, 44330), (682, 42445), (715, 40486), (806, 35915), (1306, 22165), (1430, 20243), (1705, 16978), (2015, 14366), (3265, 8866), (3410, 8489), (4030, 7183), (4433, 6530)]