28568540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1427}}^1$

素因数の和:1467

約数の個数: 96

約数和(自身を含む): 80607744

約数和(自身を除く): 52039204

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1427, 1430, 1540, 1820, 2002, 2854, 2860, 4004, 5005, 5708, 7135, 9989, 10010, 14270, 15697, 18551, 19978, 20020, 28540, 31394, 37102, 39956, 49945, 62788, 74204, 78485, 92755, 99890, 109879, 129857, 156970, 185510, 199780, 204061, 219758, 259714, 313940, 371020, 408122, 439516, 519428, 549395, 649285, 816244, 1020305, 1098790, 1298570, 1428427, 2040610, 2197580, 2597140, 2856854, 4081220, 5713708, 7142135, 14284270, 28568540]

約数ペア:

[(1, 28568540), (2, 14284270), (4, 7142135), (5, 5713708), (7, 4081220), (10, 2856854), (11, 2597140), (13, 2197580), (14, 2040610), (20, 1428427), (22, 1298570), (26, 1098790), (28, 1020305), (35, 816244), (44, 649285), (52, 549395), (55, 519428), (65, 439516), (70, 408122), (77, 371020), (91, 313940), (110, 259714), (130, 219758), (140, 204061), (143, 199780), (154, 185510), (182, 156970), (220, 129857), (260, 109879), (286, 99890), (308, 92755), (364, 78485), (385, 74204), (455, 62788), (572, 49945), (715, 39956), (770, 37102), (910, 31394), (1001, 28540), (1427, 20020), (1430, 19978), (1540, 18551), (1820, 15697), (2002, 14270), (2854, 10010), (2860, 9989), (4004, 7135), (5005, 5708)]