28919940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1861}}^1$

素因数の和:1917

約数の個数: 96

約数和(自身を含む): 95096064

約数和(自身を除く): 66176124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1554, 1861, 2220, 2590, 3108, 3722, 3885, 5180, 5583, 7444, 7770, 9305, 11166, 13027, 15540, 18610, 22332, 26054, 27915, 37220, 39081, 52108, 55830, 65135, 68857, 78162, 111660, 130270, 137714, 156324, 195405, 206571, 260540, 275428, 344285, 390810, 413142, 481999, 688570, 781620, 826284, 963998, 1032855, 1377140, 1445997, 1927996, 2065710, 2409995, 2891994, 4131420, 4819990, 5783988, 7229985, 9639980, 14459970, 28919940]

約数ペア:

[(1, 28919940), (2, 14459970), (3, 9639980), (4, 7229985), (5, 5783988), (6, 4819990), (7, 4131420), (10, 2891994), (12, 2409995), (14, 2065710), (15, 1927996), (20, 1445997), (21, 1377140), (28, 1032855), (30, 963998), (35, 826284), (37, 781620), (42, 688570), (60, 481999), (70, 413142), (74, 390810), (84, 344285), (105, 275428), (111, 260540), (140, 206571), (148, 195405), (185, 156324), (210, 137714), (222, 130270), (259, 111660), (370, 78162), (420, 68857), (444, 65135), (518, 55830), (555, 52108), (740, 39081), (777, 37220), (1036, 27915), (1110, 26054), (1295, 22332), (1554, 18610), (1861, 15540), (2220, 13027), (2590, 11166), (3108, 9305), (3722, 7770), (3885, 7444), (5180, 5583)]