28715750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 62674560

約数和(自身を除く): 33958810

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 61, 70, 122, 125, 175, 250, 269, 305, 350, 427, 538, 610, 854, 875, 1345, 1525, 1750, 1883, 2135, 2690, 3050, 3766, 4270, 6725, 7625, 9415, 10675, 13450, 15250, 16409, 18830, 21350, 32818, 33625, 47075, 53375, 67250, 82045, 94150, 106750, 114863, 164090, 229726, 235375, 410225, 470750, 574315, 820450, 1148630, 2051125, 2871575, 4102250, 5743150, 14357875, 28715750]

約数ペア:

[(1, 28715750), (2, 14357875), (5, 5743150), (7, 4102250), (10, 2871575), (14, 2051125), (25, 1148630), (35, 820450), (50, 574315), (61, 470750), (70, 410225), (122, 235375), (125, 229726), (175, 164090), (250, 114863), (269, 106750), (305, 94150), (350, 82045), (427, 67250), (538, 53375), (610, 47075), (854, 33625), (875, 32818), (1345, 21350), (1525, 18830), (1750, 16409), (1883, 15250), (2135, 13450), (2690, 10675), (3050, 9415), (3766, 7625), (4270, 6725)]