81398128

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1319}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 196416000

約数和(自身を除く): 115017872

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 38, 56, 58, 76, 112, 116, 133, 152, 203, 232, 266, 304, 406, 464, 532, 551, 812, 1064, 1102, 1319, 1624, 2128, 2204, 2638, 3248, 3857, 4408, 5276, 7714, 8816, 9233, 10552, 15428, 18466, 21104, 25061, 30856, 36932, 38251, 50122, 61712, 73864, 76502, 100244, 147728, 153004, 175427, 200488, 267757, 306008, 350854, 400976, 535514, 612016, 701708, 726769, 1071028, 1403416, 1453538, 2142056, 2806832, 2907076, 4284112, 5087383, 5814152, 10174766, 11628304, 20349532, 40699064, 81398128]

約数ペア:

[(1, 81398128), (2, 40699064), (4, 20349532), (7, 11628304), (8, 10174766), (14, 5814152), (16, 5087383), (19, 4284112), (28, 2907076), (29, 2806832), (38, 2142056), (56, 1453538), (58, 1403416), (76, 1071028), (112, 726769), (116, 701708), (133, 612016), (152, 535514), (203, 400976), (232, 350854), (266, 306008), (304, 267757), (406, 200488), (464, 175427), (532, 153004), (551, 147728), (812, 100244), (1064, 76502), (1102, 73864), (1319, 61712), (1624, 50122), (2128, 38251), (2204, 36932), (2638, 30856), (3248, 25061), (3857, 21104), (4408, 18466), (5276, 15428), (7714, 10552), (8816, 9233)]