28679560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7879}}^1$

素因数の和:7910

約数の個数: 64

約数和(自身を含む): 79430400

約数和(自身を除く): 50750840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7879, 15758, 31516, 39395, 55153, 63032, 78790, 102427, 110306, 157580, 204854, 220612, 275765, 315160, 409708, 441224, 512135, 551530, 716989, 819416, 1024270, 1103060, 1433978, 2048540, 2206120, 2867956, 3584945, 4097080, 5735912, 7169890, 14339780, 28679560]

約数ペア:

[(1, 28679560), (2, 14339780), (4, 7169890), (5, 5735912), (7, 4097080), (8, 3584945), (10, 2867956), (13, 2206120), (14, 2048540), (20, 1433978), (26, 1103060), (28, 1024270), (35, 819416), (40, 716989), (52, 551530), (56, 512135), (65, 441224), (70, 409708), (91, 315160), (104, 275765), (130, 220612), (140, 204854), (182, 157580), (260, 110306), (280, 102427), (364, 78790), (455, 63032), (520, 55153), (728, 39395), (910, 31516), (1820, 15758), (3640, 7879)]