209121410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 411713280

約数和(自身を除く): 202591870

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 151, 185, 190, 197, 302, 370, 394, 703, 755, 985, 1406, 1510, 1970, 2869, 3515, 3743, 5587, 5738, 7030, 7289, 7486, 11174, 14345, 14578, 18715, 27935, 28690, 29747, 36445, 37430, 55870, 59494, 72890, 106153, 138491, 148735, 212306, 276982, 297470, 530765, 565193, 692455, 1061530, 1100639, 1130386, 1384910, 2201278, 2825965, 5503195, 5651930, 11006390, 20912141, 41824282, 104560705, 209121410]

約数ペア:

[(1, 209121410), (2, 104560705), (5, 41824282), (10, 20912141), (19, 11006390), (37, 5651930), (38, 5503195), (74, 2825965), (95, 2201278), (151, 1384910), (185, 1130386), (190, 1100639), (197, 1061530), (302, 692455), (370, 565193), (394, 530765), (703, 297470), (755, 276982), (985, 212306), (1406, 148735), (1510, 138491), (1970, 106153), (2869, 72890), (3515, 59494), (3743, 55870), (5587, 37430), (5738, 36445), (7030, 29747), (7289, 28690), (7486, 27935), (11174, 18715), (14345, 14578)]