28497560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7829}}^1$

素因数の和:7860

約数の個数: 64

約数和(自身を含む): 78926400

約数和(自身を除く): 50428840

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, 7829, 15658, 31316, 39145, 54803, 62632, 78290, 101777, 109606, 156580, 203554, 219212, 274015, 313160, 407108, 438424, 508885, 548030, 712439, 814216, 1017770, 1096060, 1424878, 2035540, 2192120, 2849756, 3562195, 4071080, 5699512, 7124390, 14248780, 28497560]

約数ペア:

[(1, 28497560), (2, 14248780), (4, 7124390), (5, 5699512), (7, 4071080), (8, 3562195), (10, 2849756), (13, 2192120), (14, 2035540), (20, 1424878), (26, 1096060), (28, 1017770), (35, 814216), (40, 712439), (52, 548030), (56, 508885), (65, 438424), (70, 407108), (91, 313160), (104, 274015), (130, 219212), (140, 203554), (182, 156580), (260, 109606), (280, 101777), (364, 78290), (455, 62632), (520, 54803), (728, 39145), (910, 31316), (1820, 15658), (3640, 7829)]