280533136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:504

約数の個数: 80

約数和(自身を含む): 610516480

約数和(自身を除く): 329983344

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 139, 208, 248, 278, 313, 403, 496, 556, 626, 806, 1112, 1252, 1612, 1807, 2224, 2504, 3224, 3614, 4069, 4309, 5008, 6448, 7228, 8138, 8618, 9703, 14456, 16276, 17236, 19406, 28912, 32552, 34472, 38812, 43507, 56017, 65104, 68944, 77624, 87014, 112034, 126139, 155248, 174028, 224068, 252278, 348056, 448136, 504556, 565591, 696112, 896272, 1009112, 1131182, 1348717, 2018224, 2262364, 2697434, 4524728, 5394868, 9049456, 10789736, 17533321, 21579472, 35066642, 70133284, 140266568, 280533136]

約数ペア:

[(1, 280533136), (2, 140266568), (4, 70133284), (8, 35066642), (13, 21579472), (16, 17533321), (26, 10789736), (31, 9049456), (52, 5394868), (62, 4524728), (104, 2697434), (124, 2262364), (139, 2018224), (208, 1348717), (248, 1131182), (278, 1009112), (313, 896272), (403, 696112), (496, 565591), (556, 504556), (626, 448136), (806, 348056), (1112, 252278), (1252, 224068), (1612, 174028), (1807, 155248), (2224, 126139), (2504, 112034), (3224, 87014), (3614, 77624), (4069, 68944), (4309, 65104), (5008, 56017), (6448, 43507), (7228, 38812), (8138, 34472), (8618, 32552), (9703, 28912), (14456, 19406), (16276, 17236)]