217430870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 427965120

約数和(自身を除く): 210534250

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 157, 185, 190, 197, 314, 370, 394, 703, 785, 985, 1406, 1570, 1970, 2983, 3515, 3743, 5809, 5966, 7030, 7289, 7486, 11618, 14578, 14915, 18715, 29045, 29830, 30929, 36445, 37430, 58090, 61858, 72890, 110371, 138491, 154645, 220742, 276982, 309290, 551855, 587651, 692455, 1103710, 1144373, 1175302, 1384910, 2288746, 2938255, 5721865, 5876510, 11443730, 21743087, 43486174, 108715435, 217430870]

約数ペア:

[(1, 217430870), (2, 108715435), (5, 43486174), (10, 21743087), (19, 11443730), (37, 5876510), (38, 5721865), (74, 2938255), (95, 2288746), (157, 1384910), (185, 1175302), (190, 1144373), (197, 1103710), (314, 692455), (370, 587651), (394, 551855), (703, 309290), (785, 276982), (985, 220742), (1406, 154645), (1570, 138491), (1970, 110371), (2983, 72890), (3515, 61858), (3743, 58090), (5809, 37430), (5966, 36445), (7030, 30929), (7289, 29830), (7486, 29045), (11618, 18715), (14578, 14915)]