28706860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15773}}^1$

素因数の和:15802

約数の個数: 48

約数和(自身を含む): 74200896

約数和(自身を除く): 45494036

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15773, 31546, 63092, 78865, 110411, 157730, 205049, 220822, 315460, 410098, 441644, 552055, 820196, 1025245, 1104110, 1435343, 2050490, 2208220, 2870686, 4100980, 5741372, 7176715, 14353430, 28706860]

約数ペア:

[(1, 28706860), (2, 14353430), (4, 7176715), (5, 5741372), (7, 4100980), (10, 2870686), (13, 2208220), (14, 2050490), (20, 1435343), (26, 1104110), (28, 1025245), (35, 820196), (52, 552055), (65, 441644), (70, 410098), (91, 315460), (130, 220822), (140, 205049), (182, 157730), (260, 110411), (364, 78865), (455, 63092), (910, 31546), (1820, 15773)]