28898324

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 64931328

約数和(自身を除く): 36033004

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 169, 182, 197, 217, 338, 364, 394, 403, 434, 676, 788, 806, 868, 1183, 1379, 1612, 2366, 2561, 2758, 2821, 4732, 5122, 5239, 5516, 5642, 6107, 10244, 10478, 11284, 12214, 17927, 20956, 24428, 33293, 35854, 36673, 42749, 66586, 71708, 73346, 79391, 85498, 133172, 146692, 158782, 170996, 233051, 317564, 466102, 555737, 932204, 1032083, 1111474, 2064166, 2222948, 4128332, 7224581, 14449162, 28898324]

約数ペア:

[(1, 28898324), (2, 14449162), (4, 7224581), (7, 4128332), (13, 2222948), (14, 2064166), (26, 1111474), (28, 1032083), (31, 932204), (52, 555737), (62, 466102), (91, 317564), (124, 233051), (169, 170996), (182, 158782), (197, 146692), (217, 133172), (338, 85498), (364, 79391), (394, 73346), (403, 71708), (434, 66586), (676, 42749), (788, 36673), (806, 35854), (868, 33293), (1183, 24428), (1379, 20956), (1612, 17927), (2366, 12214), (2561, 11284), (2758, 10478), (2821, 10244), (4732, 6107), (5122, 5642), (5239, 5516)]