28676240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{373}}^1$

素因数の和:448

約数の個数: 60

約数和(自身を含む): 69077052

約数和(自身を除く): 40400812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 373, 496, 620, 746, 961, 1240, 1492, 1865, 1922, 2480, 2984, 3730, 3844, 4805, 5968, 7460, 7688, 9610, 11563, 14920, 15376, 19220, 23126, 29840, 38440, 46252, 57815, 76880, 92504, 115630, 185008, 231260, 358453, 462520, 716906, 925040, 1433812, 1792265, 2867624, 3584530, 5735248, 7169060, 14338120, 28676240]

約数ペア:

[(1, 28676240), (2, 14338120), (4, 7169060), (5, 5735248), (8, 3584530), (10, 2867624), (16, 1792265), (20, 1433812), (31, 925040), (40, 716906), (62, 462520), (80, 358453), (124, 231260), (155, 185008), (248, 115630), (310, 92504), (373, 76880), (496, 57815), (620, 46252), (746, 38440), (961, 29840), (1240, 23126), (1492, 19220), (1865, 15376), (1922, 14920), (2480, 11563), (2984, 9610), (3730, 7688), (3844, 7460), (4805, 5968)]